rocky80

The question is very confusing indeed. iof two vertices are on y -axis then x co-ordinate should be zero.

let avg speed be - y if the new avg speed be 20 +y then time difference should be 1 hr so, 400/y - 400/(y+20) =1 now u can find out y , which is the avg speed of the car.

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1. 100x A) 1100x B) y take x =1, y =501 in this case its A now if x =1, y = 5000...1 then its B so its D

overall u have to calcuate mileage between any every two cities so, one has to find the ways in which two cities out of 6 can be chosen....

yes..i apologise for my mistake.... :doh:

diagonals of a parallelogram are not equal. they bisect each other at some angle, in this question they bisect at 60 deg. if they bisect at 90 deg then its a rhombus.

answers shud be D

correct way of solving.... u have to choose two discrete cities out of a total of 6 cities... what if a table of 25 cities came in the GRE ... will anyone sort out that way??

1/2^n => 100 for n= 6 u have 2^n = 64 for n =7 u have 128 so least value is 7.

you posted 2)Let A1, A2, A3,,An,,be a sequence of positive numbers where A1+1, and for n³1, An+1 = An+4. which of the following represents the nth term in the sequence? Answer is 4n-3. instead of A1+1 it shud be a1 =1 then keeping the value of n=1 u get 4n-3 = 1 =a1

1. 100x A) 1100x B) y D 2. 2. If a certain automobile gets between 20 and 24 miles per gallon of gasoline, inclusive, what would be the maximum amount of gasoline, in gallons, this automobile would consume on a trip of 360 miles? A) 20 B) 18 C) 16.4 D) 16 E) 15 maximum amout = 360/20 = 18 minimum amount = 360/24 B 4. 1-X / X-1 = 1/X and x not equal to 1. A) X B) -1/2 x^2 = 1 x =+1/ -1 D 5. A, 6. 6. X > 0 A) 1/x + 1 B) 1/x+1 if, say 1/x + 1 > 1/(x+1) (x+1)^2>1 x^2 + x +1 >0 which is true so, A 7. 7. An experiment has 3 possible outcomes, I, J and K. The possibilities of the outcomes are 0.25, 0.35 and 0.40 respectively. If the experiment is to be performed twice and the successive outcomes are independent, what is the probability that K will be not an outcome either time? A) 0.36 B) 0.40 C) 0.60 D) 0.64 E) 0.80 probability = probability of k occuring neither time = (1-k)x(1-k) = .6x.6 = .36 A 8. 1 gallon = 8 pints and 1 quart = 2 pints A) The least number of half-pint bottles needed to hold x quarts of milk B) The least number of one quart bottles needed to hold x gallons of milk . x qrtr = 2x pints so 4x no of half pint bottles for case 1. x gallons = 8x pints = 4x qrts bottles. C !

if u cant improve ur quants then u cant think of even an average school ..... and if u perform in a similar fasion in main exam then i dont think that u will get even a VISA for US.... so start thinking about beter scores... and all the best....

I think there shud be a figure also with this question.

from n = 1 to 96 either n is odd or n is even probability that n is even itself is = 50% when n is even n*(n+1)*(n+2) = multiple of 8 when n is odd then n+1 = even = shud be a multiple of 8 that means out of 96 nos. there can be 12 multiples of 8 that gives probability = 1/8 more adding both = 50% + 12.5% = 62.5% let me know whether my approach is correct or not.