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