Question 42

Find the Missing number in the table?

Solution

The pattern followed is that in each column, the sum of squares of first two numbers is equal to the last number.

Eg :- $$(17)^2+(8)^2=289+64=353$$

and $$(13)^2+(11)^2=169+121=290$$

Similarly, $$(15)^2+(x)^2=274$$

=> $$x^2=274-225=49$$

=> $$x=\sqrt{49}=7$$

=> Ans - (D)

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