Question 29

Find the wrong number in the series. 6, 12, 21, 32, 45, 60

Solution

Given series after second number, is increasing with an increasing rate of 9,11,13,15
We can see that its rate has a constant increasing rate of 2.
So accordingly first number should be 7 not 6.

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Find the wrong number in the series. 6, 12, 21, 32, 45, 60

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