105 is related to 15 following a certain logic. Following the same logic, 154 is related to 22. To which of the following is 189 related following the same logic?
(NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into their constituent digits. E.g. 13 – Operations on 13 such as adding /deleting /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.)
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 27.
The logic used here is:
105 is related to 15
15 × 7 = 105
154 is related to 22
22 × 7 =154
Similarly,
189:?
27 × 7 = 189
Hence, 27 is the correct answer.