Select the set in which the numbers are related in the same way as are the numbers of the following sets.
(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)
(50, 60, 2000)
(20, 30, 200)
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. (21, 11, 11).
Logic : (First number - 10) × (Second number - 10) = Third number
(50, 60, 2000) ⇒ (50 - 10) × (60 - 10) = 40 × 50 = 2000
(20, 30, 200) ⇒ (20 - 10) × (30 - 10) = 10 × 20 = 200
Similarly,
(21, 11, 11) ⇒ (21 - 10) × (11 - 10) = 11 × 1 = 11
Hence, the correct answer is (21, 11, 11).