Question

Mark the correct alternative in each of the following:

If the difference of an integer a and (−9) is 5, then a =

(a) 4 (b) 5 (c) −4 (d) −9

Answer 1

a − (−9) = 5 (Given)

⇒ a + 9 = 5

Putting a = −4, we get

LHS = −4 + 9 = 5 = RHS

∴ a = −4

Hence, the correct answer is option (c).