1.

Find the next number in the following series.71, 63, 55, ______?1. 472. 453. 464. 48

Answer» Correct Answer - Option 1 : 47

Given:

71, 63, 55, ?

Calculation:

Let the number be 'x'

71 – 63 = 8

63 – 55 = 8

Now we can see that the difference between,

1st and 2nd is same as of the difference between,

2nd and 3rd, that is 8.

⇒ 55 – x = 8

⇒ x = 55 – 8

⇒ x = 47

∴ The next value is 47



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