If a and b are positive integers such that a ? b and a/b are both even integers, which of the following must be an odd integer? a-b is even so both a& b are either odd or even a/b is even, possible only if both are even(considering the above case also into account) so we can say that both a &...

Agree with Camitava, ans should be E 3.2xy6 If x and y each represent single digits in the decimal above, what digit does x represent? (1) When the decimal is rounded to the nearest tenth, 3.2 is the result. decimal can be 3.15 -- 3.24 INSUFF (2) When the decimal is rounded to the nearest hundredth,...

Many Congratulations Sam, you've demonstrated the result of being optimistic

he calcuates the dollar amount of the tip as 2 times the tens digit of the amount of his bill stmt 1: the amount of the bill was between $15 and $50 so tip can be between $2 & $10 & 15% OF 15 = 2.25 & 50 is 7.5 INSUFF stmt 2: tip was $8 so tens digit of the bill would be 4 so the amt can...

I've not solved it though but I agree with sirikesav it should be E

Hi GMATDUD, I would solve for stmt 2 like this if y>=0, what is the value of x? B) lx-3l <y>=0 so -y will be 0 or -ve now |x-3| is an absolute value so it will be always +ve so in the given inequality the only real world case that will arise will be when y=0 as for other values of y -y will be -ve w...

I agree with sankruth, It should be E

IMO a good approach is to extract the common part in both the exponents & then work with the problem, In fact this step will itself present the soln

i.e 2^100 - 2^96?

2^96 ( 2^4- 1)

=2^96(15)

=2^96 (5*3)

ans 5 C