Question

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 the fifth number is related to the sixth number. 

59 :13 :: ? : 17 :: 99 : 21

1. 49
2. 39
3. 79
4. 69

Answer 1

Correct Answer - Option 3 : 79

LOGIC: (Second Number × 5) - 6 = First Number

In 59 :13 →

13 × 5 - 6

= 65 - 6

= 59

In 99 : 21 →

21 × 5 - 6

= 105 - 6

= 99

Similarly-

In ? : 17 →

17 × 5 - 6

= 85 - 6

= 79

Hence, Option (3) is the answer.