Discussion of Question with ID = 065 under Missing-Numbers

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Question

What is missing?

A

9.

B

5.

C

7.

D

3.

Soln.
Ans: a

5 x 8 x 10 = 400, 6 x 9 x 7 = 378, 5 x 7 x ? = 315, So ? = 9.

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