Question 15

Which number will replace the question mark (?) in the following series?
55, 56, 64, 91, 155, ?

Solution

Here the differences are cubes of consecutive even numbers i.e; 1,8,27 and 64 are cubes of 1,2,3,4. So the nest difference will be 125 and the number in the series will be 155+125= 280

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SSC CHSL 8 July 2019 Shift-2

Which number will replace the question mark (?) in the following series?55, 56, 64, 91, 155, ?

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Which number will replace the question mark (?) in the following series?
55, 56, 64, 91, 155, ?