SSC CGL 30 August 2015 Tier 1

Instructions

In each of the following questions. a series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series.

Question 101

325, 259. 204, 160, 127, 105, ?

Solution

here the given pattern is 325, 259. 204, 160, 127, 105, ?

and so let the missing number be y

here we can see that

259 - 325 = -66

204 - 259 = -55

160 - 204 = -44

127 - 160 = -33

105 - 127 = -22

here we can see that every time the difference is reducing by -11

so , y - 105 = -11

y = 94


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