Question

Select the option that is related to the third number in the same way as the second number is related to the first number.

12 ∶ 140 ∶∶ 15 ∶ ?

• A. 231
• B. 115
• C. 135
• D. 221

Answer 1

Answer:

D. 221

Solution:

The logic is:

12 : 140 → 12 : 12² - 4

Similarly,

15 : ? → 15 : 152 - 4

=> ? = 225 - 4

=> ? = 221

Hence, ‘221’ is the correct answer