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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