CMAT 2022 Solved Question Paper

It is given that

1

x

is positive and

1

y

is negative, this implies that x is positive and y is negative.
A)

1

x

+

1

y

is positive, we know x is positive, and y is negative, but we cannot conclude which value is greater. Therefore, this may or may not be true.
B)

1

x

−

1

y

is positive; we know that mathrm‌x is positive and y is negative. So this statement is definitely true.
(C)

x−y

xy

=−(

1

x

−

1

y

) As

1

x

−

1

y

is positive and y is negative. Therefore, the statement is true.
D) xy is negative as x is positive and y is negative. Therefore, the statement is false.
E)

1

x2

−

1

y2

is positive only when y2>x2, but we cannot conclude which value is greater. Therefore, this may or may not be true.Only (B) and (C) are true.
Answer is option B