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137. 4, 16, 4 : 2, 4, 2 : : ? : 3, 9, 3...

137. 4, 16, 4 : 2, 4, 2 : : ? : 3, 9, 3

A

6,9,6,

B

9,81,9

C

9,27,9

D

9,18,9

Text Solution

Verified by Experts

The correct Answer is:
B
`4 xx 4` = 16
The product of the first and the last numbers is equal to the middle number in each term.
`2 xx 2` = 4 , `3 xx 3` = 9
Therefore,
? = `9 xx 9` = 81
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