Instructions

In the following question, select the missing number from the given series.

Question 17

84, 42, 28, 21, ?

Solution

The pattern followed is :

84 $$\div(1+\frac{1}{1})=$$ 42

42 $$\div(1+\frac{1}{2})=$$ 28

28 $$\div(1+\frac{1}{3})=$$ 21

21 $$\div(1+\frac{1}{4})=$$ 16.8

=> Ans - (B)

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