Question : Directions: Select the option that is related to the third number in the same way as the second number is related to the first number.
12 : 1730 :: 9 : ?
Option 1: 730
Option 2: 731
Option 3: 733
Option 4: 741
Correct Answer: 731
Solution :
Given:
12 : 1730 :: 9 : ?
Find the cube of the first number, and then add 2 to the resultant, to obtain the second number in each number pair –
Like,
12 : 1730→12
3
+ 2 = 1728 + 2 = 1730
Similarly, follow the same pattern for 9 : ?→
9
3
+ 2 = 729 + 2 = 731
So, 731 is the required missing number. Hence, the second option is correct.
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