Question 5

Choose the alternative that best replaces the question mark(?) in the given figure.

Solution

The pattern is $$ (a+b+c)^2 = d $$

$$ (1+3+3)^2 = 49 $$

$$ (4+3+1)^2 = 64 $$

$$ (a+4+2)^2 = 169 $$

a + 4 + 2 = 13

i.e. a = 13 - 6 = 7

Therefore, Option C is correct

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