Answer and explanation

Correct answer: B. 12

  1. Step 1: 12 x 12 = 144.
Answer
12.
Why not the others: 72: the number was halved. 14: a nearby square root was used. 20736: the number was squared instead.

Practise more Statistics and number.

Free questions with an explanation for every one, and full timed Iraqi Third Intermediate Ministerial Exams mock tests.