Question 18

Select the correct option that will fill in the blank and complete the series.
145, 100, 65, 40, ?

Solution

145, 100, 65, 40, ?

145-100 = 45

100-65 = 35

65-40 = 25

40-15 = 25

So, there is a difference of 15,25,35,45 between each numbers.

Option D is correct.

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