InterviewSolution
Saved Bookmarks
| 1. |
1). Only I2). Only II3). Neither I nor II4). Both I and II |
|
Answer» Let us assume (32002 - 1) be a MULTIPLE of 4 ⇒ 32002 - 1 = 4q ⇒ 32002 + 1 = 4q + 2 is not DIVISIBLE by 4 ⇒ They cannot have a common factor of 4 ⇒ Statement I is false Statement II: (484 - 1) = (442 + 1) (442 - 1) [? (a2 - B2) = (a + b) (a - b)] ⇒ (442 + 1) (421 - 1) (421 + 1) ⇒ (421 + 1) will be divisible by 5 [? (an + bn) will be divisible by (a + b), when n is odd] ⇒ (484 - 1) will be divisible by 5 ⇒ Statement II is true ∴ Only statement 2 is true. |
|