Select the option in which numbers are related in the same way as are the numbers of following set.
(25, 54, 15), (23, 63, 13), ?
Answer & explanation
Correct answer: option 2
Concept followed :(a × b + 5) : (ab) : a × b - 5 (23, 63, 13)
20 + 5, 54, 20 - 5 6 × 3 + 5, 63, 6 × 3 - 5
25 ,54 ,15 23 , 63 , 13
Similarly,
5 × 7 + 5 : 57 : 5 × 7 - 5
40 : 57 : 30