Question : Directions: Select the option related to the sixth number in the same way as the first number is related to the second number and the third number is related to the fourth number.
4 : 63 :: 7 : 342 :: ? : 728
Option 1: 9
Option 2: 11
Option 3: 8
Option 4: 13
Correct Answer: 9
Solution :
Given:
4 : 63 :: 7 : 342 :: ? : 728
Subtract 1 from the cube of the first number, to get the second number –
Like, 4 : 63→4
3
– 1 = 63
And, 7 : 342→7
3
– 1 = 342
Similarly, follow the same pattern for ? : 728→X
3
– 1 = 728 ⇒ X
3
= 728 + 1 ⇒ X = 9
So, 9 is related to 728. Hence, the first option is correct.