Direction: In each of the following questions, there is a certain relationship between two given numbers on one side of (: :) and one number is given on another side of (: :) where another number is to be found from the given alternatives, having the same realtionship with this numbers of the given pair bear. Choose the best alternative.
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1/9 : 1/81,1/13 : ?
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- 1/127
- 1/169
- 1/125
- 1/120
Correct Option: B
As, (1/9)2 = 1/81
Similarly, (1/13)2 = 1/169