Select the option that is related to the third number in the same way as the second number is related to the first number.
21 : 445 :: 24 : ?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is Option 4 i.e. 580.
21 : 445 :: 24 : ?
(21)2 + 4
= 441 + 4
= 445
Similarly,
(24)2 + 4
= 576 + 4
= 580 will be the answer.
Hence, the correct answer is 580.