seekmba wrote:
Is x^2*y^4 an integer divisible by 9 ?
(1) x is an integer divisible by 3
(2) xy is an integer divisible by 9
(1) x is an integer divisible by 3
(2) xy is an integer divisible by 9
[Reveal] Spoiler:
Statements (1) and (2) TOGETHER are NOT sufficient
Statements (1) and (2) combined are insufficient. If and then both S1 and S2 hold, but is not divisible by 9.
Why is s1 not sufficient. If x is divisible by 3 then the minimum value of x will be 3 andx^2 = 9 which is divisible by 9?
Statements (1) and (2) combined are insufficient. If and then both S1 and S2 hold, but is not divisible by 9.
Why is s1 not sufficient. If x is divisible by 3 then the minimum value of x will be 3 andx^2 = 9 which is divisible by 9?
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without any doubt the Answer is (E).........................
consider fractions, then you will find x^2*y^4 is divisible by 9 but still is a fraction due to y being a fraction.