Question 9

A series is given, with one number missing. Choose the correct alternative from the given ones that will complete the series.
400, -200, 100, ? , 25, -12.5

Solution

The pattern is that each number is divided by -2

400 $$\div-2$$ = -200

-200 $$\div-2$$ = 100

100 $$\div-2$$ = -50

-50 $$\div-2$$ = 25

25 $$\div-2$$ = -12.5

=> Ans - (A)

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