Question

You have two numbers X and Y which are positive inlegers.
Statement. Y 4 = 4X
Statement II (X-3) is divisible by 5
Statement IN 0.25Y=(X+4)
o
How many of the following statements would be required at minimum to determine whether Y's division​

Answer 1

Answer:

Only one statement is required to determine whether Y is divisible by 5.

Explanation:

Statement I: Y-4 = 4X

Case 1: If X is even

When X is an even number, 4X will also be even as the product of an even number with 4 is always an even number.

$Y-4=even$

$Y=even+4$

The addition of an even number with an even number gives back an even number.

$Y=even$

Case 2: If X is odd

When X is an odd number, 4X will be even as the product of an odd number with 4 is always an even number.

$Y-4=even$

$Y=even+4$

$Y=even$

As Y is even in either of the cases, it is not divisible by 5.

Therefore, the first statement is enough to determine if Y is divisible by 5 or not.

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