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Mathematics
Dexter Levy
2 January, 19:58
What's the missing number : 9876, 6447, 2527, x.?
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Mariah
2 January, 20:43
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The given pattern is 9876, 6447, 2527, x
We have to find the missing number 'x' in the given pattern.
We will use hit and trial method to get this missing number.
Let us observe the given pattern.
I have assumed the unknown number as - 1884
that is the sequence becomes as
9876, 6447, 2527, - 1884
Consider the difference of first term from second term that is 6447 from 9876.
6447 - 9876 = - 3429
Consider the difference of second term from third term that is 2527 from 6447.
2527-6447 = - 3920
Consider the difference of third term from fourth term that is 2527 from - 1884
= - 1884-2527
= - 4411
By computing the differences, we get
-3429, - 3920, - 4411
Now, the difference of - 3429 from - 3920
= - 3920 - (-3429)
= - 491
Now, the difference of - 3920 from - 4411
= - 4411 - (-3920)
= - 491
Which is same.
Therefore, the missing number 'x' is - 1884.
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