imo 48

IMO the answer is [C] .. both together sufficient. Explanation- Is y^x > x^y? .. (i) from 1) x = y power 2 => x = y^2 substituting this in (i) y^(y^2) > y^(2y) ? for this to be true.. y>1 & y^2 > 2y =>y>2 This is an information supplied by 2) 2) y > 2 Thus, both together are sufficient!!

Its [E] 45..

Here is how my thought process goes-

s/t = 64.12
=> s = 64t + 0.12t

Here 64 is the quotient and 0.12t is the remainder.

0.12t => 3*t/75 => 3*(t/75)

Thus remainder is a multiple of 3, hence option [E] is the only choice possible!!

Clearly the answer is [spoiler]6 [C][/spoiler]

Explanation

A B
+ C
+ D
+ E
_____

A F
_____

Hi usfall13ivy, The correct answer is [spoiler] [/spoiler] f(x) = 6x^2 + x -1 =>(2x+1)(3x-1) Now from (1) x(x+3) = 0 This is satisfied when x = 0 and x = -3 for x=0, f(x) = -1; for x=-3, f(x) = 50 hence, no unique value.. NOT sufficient From (2) x = -3 => f(x) = 50 Unique value therefore sufficient ...

Hi klmehta03,

Your answer is correct but explanation is wrong.

IMO [spoiler][E][/spoiler]..

From question-
Q =100/A and
R= 100/B

Since A and B are single digits possible values are-
1, 2, 4, 5

Thus, option [spoiler][E][/spoiler] is correct one.

Hope it helps!!

If x is a prime number greater than 5, y is a positive integer, and 5y=x^2+x, then y must be divisible by which of the following? A) 5 B) 2x C) x+1 (Note: more than one statement can be true) IMO its B .. Here is the explanation- y = (x^2+x)/5 = x(x+1)/5 Now since x is a prime greater than 5 and y ...