prep2max

n cant be 0, question says n is positive

Congrats Khushi!! Great Score, well done!!

as per me the answer should be 2520/4! = 105 and 90/3! = 15

http://www.www.urch.com/forums/showthread.php?t=23961&highlight=tennis+teams http://www.www.urch.com/forums/showthread.php?t=25896 guys how are these 2 different, pls explain..thnx

Very Well Done!![clap] Thats an amazing score!! Wish you all the best with your apps!!

Congrats C Nagar! Well done and all the best with your apps!

8c3*3! = 336 336 - 330 = 6

11c4*4! : 11c3*3! = 8 : 1

it should be 90/3! = 15 we have to remove the repititions in the groups - (ab),(cd),(de) and (ab)(de)(cd) are the same group

1. 11c4*41 : 11c3*3! 2. 4/7

think it should be C st1. only gives us the median not the mean - not suff st2. only gives us the range - not suff together we know that the range is 100 and the median in 90, hence the range is 40 to 140 - suff

:tup: Congrats!! Grey:tup: Thats A Super Super Score!! And a big thanks for helping all of us at testmagic, uve been awesome!![clap]

Congrats Riju!! Great Score!!

thnx guys..OA is C

should be B the number of women will increase if one of the men gets injured and is replaced by a women in the reserve. We know the number of wemen in the reserve but we need to know 'x' or the probability of one man getting injured. st1. does'nt give the number of men - not suff st2. gives us the ratio of men to wemen - x:y = 1:3, hence the probabilty of a man getting injured is 1/4 - suff

should be D st1. b = 3*rt b or rt b = 3 = a or b = 9 - suff st2. a^3 = 27 or a = 3 and b = 9 - suff

1. think this should be 5^4, you can wear a ring on each finger in 5 ways, hence in 4 fingers, 5*5*5*5 = 5^4 2. 56 3. 4 4. men can sit in 5! ways, women can sit in any of the 6 places next to men, 6C4 and can be arranged in 4! ways = 5!*15*4! 5. 13^4*48C2

Which of me following best completes the passage below? Adding ethanol to the gasoline used in cars reduces exhaust emissions while slightly increasing evaporation from gasoline tanks in cars and service stations. These evaporative emissions are a major component of the smog found in many large cities in the hot summer months but, except in hot weather, evaporative emissions pose less of a pollution problem than exhaust emissions do. Therefore, if air pollution were the only consideration, one could conclude that -----. (A) ethanol should be added only to gasoline intended for use in large cities (B) the benefits of using gasoline to which ethanol has been added are greater in hot weather than in cold weather © the disadvantages of adding ethanol to gasoline are likely to be outweighed by the advantages, at least in cold weather (D) it is not necessary to work at reducing exhaust emissions in large cities (E) adding ethanol to the gasoline used in large cities will improve air quality in the cities in hot weather OA to follow, pls explain

agree with B st2. can be simplyfied to (x+y)/100 + xy/100 = 3 - suff

thnx arjmen!

arjmen, could you explain this step..thnx 22!5!/22 arrangements where the vowels begin the arrangement

agree with 8C5

Security, wish you all the best with your apps! and thanks for your all your help.

SUPER SUPER SUPER!!!![clap] :tup: CONGRATS!!:tup: I knew you'll rock!!

B is correct price all 2 houses = 360,000 st1. does'nt tell us the price of the other houses - not suff st2. price of remaining 2 houses is 240,000, so they could be 120000 and 120000 or 110000 and 130000 and so on, any which way the median will be 120000 - suff