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Sivagami.A

· started a discussion

· 1 Months ago

Number series (Question:100886.0)

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Question:
What should come in place of the question mark (?) in the following question?


49, 1625, 3649, 6481, (?)

Options:
A) 81100
B) 100144
C) 100121
D) 121169
E) 131169
Solution:

49, 1625, 3649, 6481,(?)

22 32, 42 52, 62 72, 82 92, 102 112

102 = 100 and 112 = 121

100121.

Knowledge Expert

· commented

· 1 Months ago

Dear Student

In this question each term made by the combination of square of two digit (digit^2 digit^2) these digits are successive numbers which starting from 2
49= 2^2 3^2= 49
1625= 4^2 5^2= 1625 and so on.... read in explanation
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