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Question

What will come in the place of (?) mark in following questions?

390/? = √256 + 3.5

A 20 Correct Answer Incorrect Answer
B 15 Correct Answer Incorrect Answer
C 10 Correct Answer Incorrect Answer
D 25 Correct Answer Incorrect Answer
E 30 Correct Answer Incorrect Answer

Solution

=> 390/? = √256 + 3.5 => 390/? = 16 + 3.5 => ? = 390/19.5 => ? = 20

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