Select the option that is related to the third number in the same way as the second number is related to the first number and the sixth number is related to the fifth number.
16 : 20 :: 256 : ? :: 49 : 56
Answer & explanation
Correct answer: option 4
16 : 20 :: 256 : ? :: 49 : 56
The logic followed here is :
ROOT OF IST NUMBER : IST NUMBER2 + IST NUMBER = IIND NUMBER
AS
ROOT OF 16 :
42 + 4 = 20
AND
ROOT OF 49 :
72 + 7 = 56
SIMILARLY
ROOT OF 256 :
162 + 16 = 272