RRB Group D 2-Nov-2014 Shift 2 Solved Paper

Question : 35 of 100

Marks: +1, -0

Complete the following series.
480, 480, 240, 80, 20, ?

Solution:

Starting from the back, the pattern of series is as follows:

4 × 5=20

20 × 4=80

80 × 3=240

240 × 2=480

480 × 1=480

Hence, the answer is 4

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