Question 18

Select the missing number from the given responses.

Solution

The number in the middle is the sum of product of right and bottom numbers of the square and the product of left and top numbers.

Eg :- $$(1\times2)+(3\times4)=2+12=14$$

and $$(5\times6)+(7\times8)=30+56=86$$

Similarly, $$(9\times10)+(11\times12)=90+132=222$$

=> Ans - (B)

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