Question 8

Find the missing number in the series.
49, 64, (...), 100, 121

Solution

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series is square of consecutive numbers starting from 7 

49 = $$7^{2}$$

64 = $$8^{2}$$

81 = $$9^{2}$$

100 = $$10^{2}$$

121 = $$11^{2}$$

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