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times: In each repetition, any two numbers, say a and b, currently on the blackboard are erased and
a new number a + b – 1 is written. What will be the number left on the board at the end?
(CAT 2008), Options are ⇒ (A) 820, (B) 821, (C) 721, (D) 819, (E) , Leave your comments or Download question paper.
The integers 1, 2, …, 40 are written on a blackboard. The following operation is then repeated 39 times: In each repetition, any two numbers, say a and b, currently on the blackboard are erased and a new number a + b – 1 is written. What will be the number left on the board at the end? (CAT 2008) | |
A. | 820 [Wrong Answer] |
B. | 821 [Wrong Answer] |
C. | 721 [Correct Answer] |
D. | 819 [Wrong Answer] |