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Question

In each of the following questions, a number series is given. After the series a number is given followed by (a), (b), (c), (d) and (e). You have complete the series starting with the number given following the sequence of the given series.

4              7              24           91           462         2763

18             a              b             c              d             e

 What would come in place of c?

A 420 Correct Answer Incorrect Answer
B 530 Correct Answer Incorrect Answer
C 427 Correct Answer Incorrect Answer
D 625 Correct Answer Incorrect Answer
E None of these Correct Answer Incorrect Answer

Solution

The above series go in the following sequence. 4 × 2 – 1 = 7 7 × 3 + 3 = 24 24 × 4 – 5 = 91 91 × 5 + 7 = 462 462 × 6 – 9 = 2763 Hence, the resulting series would be: 18     35  108   427214212843

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