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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 to complete the series starting with the number given following the sequence of the given series.

-3 -10 -40 -185 -905 -4500

-4 a b c d e

Find the value of d.

A - 1650 Correct Answer Incorrect Answer
B - 1640 Correct Answer Incorrect Answer
C - 1760 Correct Answer Incorrect Answer
D - 1530 Correct Answer Incorrect Answer
E None of these Correct Answer Incorrect Answer

Solution

The pattern of the first line series is obtained as, -3, ( -3 + 1 ) × 5, ( -10 + 2 ) × 5, ( -40 + 3 ) × 5, ( - 185 + 4 ) × 5, ( - 905 + 5 ) × 5 Completing the next series as, -4, a = ( -4 + 1 ) × 5, b = ( -15 + 2 ) × 5, c = ( -65 + 3 ) × 5, d = ( -310 + 4 ) × 5 Value of d = - 1530

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