In the following number series, only one number is wrong, find out the wrong number
888, 454, 237, 128.5, 76.25, 47.125
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CMAT Number Series Questions
We need to identify the pattern in the series and check if there is any inconsistency.
From 888 to 454:
888 ÷ 2 = 444 (But the next number is 454)
So, we can guess that the next number is approximately halved but with a small increase.
454 = 444 + 10
From 454 to 237:
454 ÷ 2 = 227 (But the next number is 237)
Again, we see that the number is approximately halved with a small increase.
237 = 227 + 10
From 237 to 128.5:
237 ÷ 2 = 118.5 (But the next number is 128.5)
Here, we see a similar pattern where the number is halved with an addition.
128.5 = 118.5 + 10
From 128.5 to 76.25:
128.5 ÷ 2 = 64.25 (But the next number is 76.25)
This doesn't fit the pattern of halving with a small increase.
The correct number here should be 64.25, so 76.25 is the wrong number.
From 76.25 to 47.125:
76.25 ÷ 2 = 38.125 (But the next number is 47.125)
Again, this doesn't follow the halving pattern with an increase.