Question

What should come at the place of question mark (?) in the following question?

24 × ?2 – 11 × 4 = 1900

A 10 Correct Answer Incorrect Answer
B 9 Correct Answer Incorrect Answer
C 15 Correct Answer Incorrect Answer
D 12 Correct Answer Incorrect Answer
E None of these Correct Answer Incorrect Answer

Solution

24 × ?2– 11 × 4 = 1900 => 24 × ?2– 44 = 1900 => 24 × ?2= 1944 => ?2= 1944/24 => ?2= 81 => ? = 9

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