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Question

What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.) 

(?)2 + 9.113 = 31.92 – 39.03 

A 16 Correct Answer Incorrect Answer
B 28 Correct Answer Incorrect Answer
C 25 Correct Answer Incorrect Answer
D 32 Correct Answer Incorrect Answer
E 28 Correct Answer Incorrect Answer

Solution

(?)2 + 93 = 322 – 39 (?)2 + 729 = 1024 – 39 (?)2 = 985 – 729 (?)2 = 256 ? = 16

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