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 +Â 4 +Â 2 = 13
i.e. a = 13 - 6 = 7
Therefore, Option C is correct
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