Select the option that is related to the fourth number in the same way as the first number is related to the second number and fifth number is related to sixth number.
(NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g.13 – Operations on 13 such as adding /subtracting /multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed)
347 : 685 :: ? : 1903 :: 610 : 1211
Show answer & explanation
Correct answer: A
Explanation
Just as
347 : 685
347 × 2 − 9 = 694 − 9 = 685
and
610 : 1211
610 × 2 − 9 = 1220 − 9 = 1211
Similarly,
x : 1903
x × 2 − 9 = 1903
⇒ x × 2 = 1912
⇒ x = 956