Discussion of Question with ID = 177 under Missing-Numbers

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Question

Find the missing number in fig. (A)

A

20.

B

38.

C

25.

D

42.

Soln.
Ans: c

The top most number = sum of 1 and 3 number of 3 row. The middle number of row 3 is equal to the sum of numbers of the second row.


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