Question : Directions: Select the option that is related to the fifth number in the same way as the second number is related to the first number and the fourth number is related to the third number.
129 : 32 :: 109 : 27 :: 289 : ?
Option 1: 54
Option 2: 96
Option 3: 72
Option 4: 28
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Correct Answer: 72
Solution :
Given:
129 : 32 :: 109 : 27 :: 289 : ?
In the above-given number pairs, subtract 1 from the first number and then divide the resultant by 4, to get the second number.
Like, 129 : 32→129 – 1 = 128; 128 ÷ 4 = 32
And, 109 : 27→109 – 1 = 108; 108 ÷ 4 = 27
Similarly, for 289 : ?→289 – 1 = 288; 288 ÷ 4 = 72
So, 72 is related to 289. Hence, the third option is correct.
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