Exams › IBPS PO › General Awareness

What will come in the place of the question mark? $(10)^2 + (24)^2 = 276 + ?^2$

1. 34
2. 6
3. 28
4. 20

Correct answer: 20

Solution

$(10)^2 + (24)^2 = 100 + 576 = 676$. So, $276 + ?^2 = 676$, which gives $?^2 = 400$. Therefore, $? = 20$.

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