Question 15

If 18 (9) 3 and 36 (30) 5, then what is the value of A in 19 (A) 18?

Solution

The pattern is that the number in the middle is obtained by multiplying the numbers on each sides and then dividing the result by '6'.

Eg : $$\frac{18\times3}{6}=3\times3=9$$

and $$\frac{36\times5}{6}=6\times5=30$$

Similarly, $$\frac{18\times19}{6}=3\times19=57$$

=> Ans - (B)

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