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Question : Directions: In the following question, select the related number from the given alternatives.
12 : 20 :: 30 : ?

Option 1: 15

Option 2: 35

Option 3: 42

Option 4: 48


Team Careers360 24th Jan, 2024
Answer (1)
Team Careers360 25th Jan, 2024

Correct Answer: 42


Solution : Given:
12 : 20 :: 30 : ?

The number in each pair is the sum of a natural number and its square.
Like, (12 : 20)→(3) 2 + 3 = 9 + 3 = 12
(4) 2 + 4 = 16 + 4 = 20
Similarly, follow the same pattern for (30 : ?)→(5) 2 + 5 = 25 + 5 = 30
(6) 2 + 6 = 36 + 6 = 42

So, 30 is related to 42 . Hence, the third option is correct.

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