Question 7

In the following question, select the related number from the given alternatives.
39 : 27 :: 53 : ?

Solution

The logic here is

3 x 9 = 27 $$\longrightarrow\ $$ $$\text{first digit of first number}\times\text{second digit of first number}=\text{second number}$$

Similarly,

5 x 3 = 15

$$\therefore\ $$53 is related to 15 in the same way 39 is related to 27.

Hence, the correct answer is Option B

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In the following question, select the related number from the given alternatives.39 : 27 :: 53 : ?