Question 81

In the following question, select the number which can be placed at the sign of question mark (?) from the given alternatives.

Solution

In each row, the sum of squares of first two numbers and the third number is equal to the last number.

Eg :- $$(2)^2+(4)^2+6=(4+16+6)=26$$

and $$(5)^2+(3)^2+1=(25+9+1)=35$$

Similarly, $$(2)^2+(3)^2+x=23$$

=> $$x=23-4-9=10$$

=> Ans - (D)


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