Question

find the missing term in the given series 7,5,14,16,28,27,?,38,77​

Answer 1

Given:  7, 5, 14, 16, 28, 27, ? , 38, 77

To Find: Missing number

Solution:

7, 5, 14, 16, 28, 27, ? , 38, 77

Break into two alternate series

 7,  14, 1 28,  ? ,   77

7

7 + 7*1 = 14

14 + 7*2  = 28

28 + 7*3 = 49

49 + 7*4 = 77

Hence missing number is  49

5,  16,  27,   38

5

5 + 11  = 16

16 + 11 = 27

27 + 11 = 38

38 + 11 = 49

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