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. 13     39     273     3003     45045 21     a          b         c           d      What should replace c?Solution
The pattern of Series I is as follows, 13 × 3 = 39, 39 × 7 = 273, 273 × 11 = 3003, 3003 × 15 = 45045 Therefore, Series II following the same pattern: 21 × 3 = 63, (a) 63 × 7 = 441, (b) 441 × 11 = 4851, (c) 4851 × 15 = 72765 (d) Hence, the value of c is 4851.
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