Question : Directions: In the following question, select the related number from the given alternatives.
13 : 169 :: ? : ?
Option 1: 12 : 140
Option 2: 3 : 6
Option 3: 11 : 111
Option 4: 9 : 81
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Correct Answer: 9 : 81
Solution :
Given:
13 : 169 :: ? : ?
Like, 13 : 169→(13)
2
= 169
Let's check the options –
First option:
12 : 140→12
2
= 144 ≠ 140
Second option:
3 : 6→3
2
= 9 ≠ 6
Third option:
11 : 111→11
2
= 121 ≠ 111
Fourth option:
9 : 81→9
2
= 81
So, only the fourth option follows the same pattern as followed by the given number pair. Hence, the fourth option is correct.
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