Friday, 14 June 2019
Friday, 23 November 2018
Saturday, 29 September 2018
Asian Games 2018(Part-1)
September 29, 2018
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What is an Asian Game?
Asian Games:-
Javelin thrower Neeraj Chopra was the flag bearer for India at the opening ceremony of the Games.
Asian Games:-
- Also known as Asiad.
- Continental multi-sport event.
- Conducted every four years from all over Asia.
- Regulated by the Asian Games Federation (AGF).
- Forty-six nations have participated in the Games, including Israel, which was excluded from the Games after their last participation in 1974.
- 2014 :-Asian Games has conducted in Incheon,South Korea
- 2022:- 19th Asian Games is scheduled to take place in Hangzhou, China.
Asian game 2018:-
- Also known as Jakarta-Palembang 2018.
- Held from 18 August to 2 September 2018.
- Indonesia hosted second time after 1962.
- Lucia Francisca Susy Susanti is a retired Indonesian badminton player who carried torch light at the 18th Asian Games.
- The sport of bridge has been introduced for the first time in the Asian Games 2018.
- There are 45 nations have participated in 18th Asian Games.
- Japanese swimmer Rikako Ikee was announced as the most valuable player (MVP) of the 2018 Asian Games.
Mascot 2018:-
Cenderawasih, a rare species of a bird in Indonesia had been selected as emblem for the 2018 Asian Games.But later this has been dropped and three new mascots were unveiled.
Bhin Bhin – a greater bird of paradise
Atung – a Bawean deer
Kaka – a Javan rhinoceros
Motto:- Energy of Asia
Medal Table (2018):-
Medal Table (2018):-
Rank | Country | Gold | Silver | Bronze | Total |
1 | China (CHN) | 132 | 92 | 65 | 289 |
2 | Japan (JPN) | 75 | 56 | 74 | 205 |
3 | South Korea (KOR) | 49 | 58 | 70 | 177 |
4 | Indonesia (INA) | 31 | 24 | 43 | 98 |
5 | Uzbekistan (UZB) | 21 | 24 | 25 | 70 |
8 | India (IND) | 15 | 24 | 30 | 69 |
India in Asian 2018:-
- Indian women’s hockey team captain Rani Rampal was India’s flag-bearer at the closing ceremony.
- India finished the 18th Asian Games with 69 medals.
- Wrestler Bajrang Punia won gold medal in the men’s 65 kg freestyle after defeating Takatani Daichi of Japan
- Vinesh Phogat from Haryana defeated Yuki Irie of Japan in the 50kg category at the Asian Games 2018. She became the first Indian woman wrestler to win a gold medal at the Asian Games.
- Saurabh Chaudhary from Uttar Pradesh won the Gold medal at the 2018 Asian Games in 10 m air pistol.He had earlier won a gold medal and set a new junior world record in the ISSF Junior World Cup in Suhl ,Germany.
- Rahi Sarnobat from Maharashtra became the first Indian woman shooter to win gold at the Asian Games against Naphaswan Yangpaiboon of Thailand in the Women’s 25m Pistol event in Palembang.
- Tejinder Pal Singh from Punjab won Gold medal in Men’s Shot Put throw with 20.75m in Jakarta, Indonesia.
Friday, 21 September 2018
Seating Arrangement (Part-1)
September 21, 2018
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Q:If there are 3 chairs on each side of square, then what are the total number of ways in which we can arrange 12 people around the square table?
Ans: Sides of square are equal so a person X can sit around table in 3 ways(Any of the 3 chairs can be put on one side)
So X can sit either on left chair, in the middle or the right chair. We can arrange other people in
(N-1)! i.e. (12-1)!=11!
Hence ways to arrange 12 people in=
3*(12-1)!=3*11! ways
Shortcut: If there are N people to be assigned a square table with (N/4) seats on one side of it
Total ways=(N/4)*(N-1)!
Q: In how many ways can we arrange 10 people around rectangular table such that there are 3 chairs on longer side and 2 on shorter side?
Ans. So if we consider the first person X
X can either sit on longer side or shorter side.
For longer side there are 3 possibilities =left, right and center
For shorter side there are 2 possibilities =left and right
Hence X can sit in 5 ways
Total arrangement =5*(10-1)!
=5*9!
Shortcut:
If we have N people that are needed to be arranged around rectangular table with 'a' seats on the longer side and 'b' seats on shorter side.
Total ways: (a+b) *(N-1)!
Q:There are 12 people needed to be arranged around an equilateral triangular table, which has 4 seats on each side. How many arrangements are possible?
Ans:
Equilateral triangle has all sides equal so first person i.e. X may sit on any one side
Ways to sit : 4(any of 4 chairs)
Hence assignment =4*(12-1)!=4*11!
Shortcut:
N people are arranged around equilateral trangle
Total arrangements:(N/3)*(N-1)!
Q: 11 people arranged around isosceles triangle which has 4 seats each on equal sides and 3 seats on other. How many arrangements are possible?
Ans:
So first person.i.e X can either sit on equal side or the unequal sides
For unequal side=3 ways
For equal side=4 ways
So total ways= 7*(11-1)!=7*(10)!
Shortcut:
N people that are around isosceles triangle with 'a' seats on each of equal side and 'b' seats on unequal side
=(a+b) *(N-1)!
Thursday, 10 May 2018
Bright Thought-1
May 10, 2018
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Sunday, 29 April 2018
Newspaper monthly Vocab-4
April 29, 2018
No comments
1. Hew:-to shape (something) by cutting with a sharp tool (such as an ax)
Examples:-
(a)They hewed logs to build a cabin.
(b)The walls are built of stones hewn by skilled craftsmen.
Synonyms: chop (down), cut (down), fell, mow
Examples:-
(a)They hewed logs to build a cabin.
(b)The walls are built of stones hewn by skilled craftsmen.
Synonyms: chop (down), cut (down), fell, mow
2. Emissary:-a person who is sent on a mission to represent another person or organization
Examples:-
(a)She acted as the president's personal emissary to the union leaders.
(b)most of the industrialized nations of the world sent emissaries to the conference on global warming
Synonyms: agent, delegate, ambassador, envoy, legate, minister, representative
Examples:-
(a)She acted as the president's personal emissary to the union leaders.
(b)most of the industrialized nations of the world sent emissaries to the conference on global warming
Synonyms: agent, delegate, ambassador, envoy, legate, minister, representative
3. Imbue:-to cause (someone or something) to be deeply affected by a feeling or to have a certain quality
Examples:-
(a)A feeling of optimism imbues her work
(b)her training at the school for the deaf imbued her with a sense of purpose that she had never known before
Synonyms: endue (or indue), infuse, inculcate, ingrain (also engrain), inoculate, invest, steep, suffuse
Examples:-
(a)A feeling of optimism imbues her work
(b)her training at the school for the deaf imbued her with a sense of purpose that she had never known before
Synonyms: endue (or indue), infuse, inculcate, ingrain (also engrain), inoculate, invest, steep, suffuse
4.Outlive:- to continue to exist longer than(something)
Examples
(a)No mother wants to outlive her children
(b)He outlived his wife by 10 years.
Examples
(a)No mother wants to outlive her children
(b)He outlived his wife by 10 years.
5. Wager:-an agreement in which people try to guess what will happen and the person who guesses wrong has to give something (such as money) to the person who guesses right
Examples:-
(a)He has a wager on the game.
(b)I don't think the horse will win. What's your wager?
Examples:-
(a)He has a wager on the game.
(b)I don't think the horse will win. What's your wager?
6. Bally:-not doing what is wanted or expected
Examples:-
a balky toddler who only seemed to know the word “no” when told to do something
Synonyms: disobedient, contrary, contumacious, defiant, froward, incompliant, insubordinate, intractable, obstreperous
Examples:-
a balky toddler who only seemed to know the word “no” when told to do something
Synonyms: disobedient, contrary, contumacious, defiant, froward, incompliant, insubordinate, intractable, obstreperous
7.Festoon:- (a)a long chain or strip of something(such as flowers or cloth) that is hung as a decoration
(b)to cover or decorate (something) withmany small objects, pieces of paper, etc.
Examples
(a)We festooned the halls with leaves and white lights.
(b)The balcony is festooned in ivy.
(c)His office is festooned with newspaper clippings.
Synonyms: adorn, array, beautify, bedeck, bedizen, blazon, caparison, deck, do, doll up, do up
(b)to cover or decorate (something) withmany small objects, pieces of paper, etc.
Examples
(a)We festooned the halls with leaves and white lights.
(b)The balcony is festooned in ivy.
(c)His office is festooned with newspaper clippings.
Synonyms: adorn, array, beautify, bedeck, bedizen, blazon, caparison, deck, do, doll up, do up
8. Dungaree:-
1 :a heavy coarse durable cotton twill woven from colored yarns; specifically :blue denim
2: clothes made usually of blue denim
1 :a heavy coarse durable cotton twill woven from colored yarns; specifically :blue denim
2: clothes made usually of blue denim
9. Bedouin:-a nomadic Arab of the Arabian, Syrian, or northern African deserts
10. Ensconce: to firmly place or hide (someone or something)
Examples:-
(a)The sculpture is safely ensconced behind glass.
(b)He ensconced himself in front of the television.
Synonyms: install, lodge, nestle, perch, roost, settle
Examples:-
(a)The sculpture is safely ensconced behind glass.
(b)He ensconced himself in front of the television.
Synonyms: install, lodge, nestle, perch, roost, settle
11. Appendage:-(a)medical : a body part (such as an arm or a leg) connected to the main part of the body
(b) something connected or joined to a larger or more important thing
Examples:-
(a)The court system acts as an appendage to the government.
(b)an appendage of a larger political party
Synonyms: accoutrement, adapter (also adaptor), add-on, adjunct
(b) something connected or joined to a larger or more important thing
Examples:-
(a)The court system acts as an appendage to the government.
(b)an appendage of a larger political party
Synonyms: accoutrement, adapter (also adaptor), add-on, adjunct
12. Like a bat out of hell:-very fast or sudden.
Example:-
The car pulled away from the curb like a bat out of hell.
Example:-
The car pulled away from the curb like a bat out of hell.
13. Dastardly:-very cruel : using tricks to hurt people
Examples:-
(a)a dastardly attack on innocent civilians
(b)his dastardly conduct in a critical moment haunted him for the rest of his life
Synonyms: chicken, chickenhearted, chicken-livered, craven, cowardly, gutless, lily-livered
Examples:-
(a)a dastardly attack on innocent civilians
(b)his dastardly conduct in a critical moment haunted him for the rest of his life
Synonyms: chicken, chickenhearted, chicken-livered, craven, cowardly, gutless, lily-livered
14. At the wheel:-driving a vehicle
Example:-
Don't worry, Katie's at the wheel, and she is very good at driving in the snow.
Example:-
Don't worry, Katie's at the wheel, and she is very good at driving in the snow.
15. Demeanour:-a person's appearance and behavior :the way someone seems to be to other people
Example:-
the director of the opera company has a haughty demeanor that can be irritating
Synonyms: actions, address, bearing, comportment, conduct
Example:-
the director of the opera company has a haughty demeanor that can be irritating
Synonyms: actions, address, bearing, comportment, conduct
16. Escapade:-an exciting, foolish, or dangerous experience or adventure
Examples:-
(A)As a teenager he embarked on a series of ill-advised escapades.
(B)their escapades at the prep school became the stuff of boarding-school legend
Synonyms: antic, caper, capriccio, dido, prank, frolic, gag, jest, knavery, monkeyshine(s), practical joke
Examples:-
(A)As a teenager he embarked on a series of ill-advised escapades.
(B)their escapades at the prep school became the stuff of boarding-school legend
Synonyms: antic, caper, capriccio, dido, prank, frolic, gag, jest, knavery, monkeyshine(s), practical joke
17.Whippet:- a small, fast dog that is used for racing
18. Staccato:-
(a)short and not sounding connected
(b)sudden and brief
Example:-
the staccato blasts of a horn
(a)short and not sounding connected
(b)sudden and brief
Example:-
the staccato blasts of a horn
19. Scraggly:-growing in a way that is not neat and even : having a ragged appearance
Example:-
He has a scraggly beard
Synonyms: broken, craggy, jagged, ragged, scraggy
Example:-
He has a scraggly beard
Synonyms: broken, craggy, jagged, ragged, scraggy
20. To the tune of:- some amount of money
Example:-
They managed to fix the car, to the tune of nearly 2500.
Example:-
They managed to fix the car, to the tune of nearly 2500.
21. Shudder: to shake because of fear, cold, etc.
Example:-
a shudder ran through him as he stepped outside into the snow
Synonyms: quiver, shiver, tremble
Example:-
a shudder ran through him as he stepped outside into the snow
Synonyms: quiver, shiver, tremble
PART-1 ---CLICK HERE
PART-2 ---CLICK HERE
PART-3 ---CLICK HERE
Wednesday, 18 April 2018
Monday, 26 March 2018
Play with sum - shortcuts
March 26, 2018
No comments
- Sum of first n natural numbers= n(n+1)/2
- Sum of first n even numbers=n(n+1)
- Sum of first n odd numbers=n^2
- Sum of square of first n natural numbers=[n(n+1)(2n+1)]/6
- Sum of square of first n even natural numbers= [2n(n+1)(2n+1)]/3
- Sum of square of first n odd numbers=[n(4(n^2) - 1)]/3
- Sum of cube of first n natural numbers={[n(n+1)]/2}^2
- Sum of cube of first n even natural numbers=2[n(n+1)]^2
- Sum of cube of first n odd natural numbers= (n^2)*[2(n^2)-1]