Evaluate the sale of number of books by a book seller in the year 2018 from the given data.
| Year | 2014 | 2015 | 2016 | 2017 | 2018 |
|---|---|---|---|---|---|
| Number of Books | 1150 | 1115 | 1045 | 940 | ? |
58.
The answer is: D
Explanation
The pattern is:
1150 → 1115 = −35
1115 → 1045 = −70
1045 → 940 = −105
The decrease is increasing by 35 each time:
−35, −70, −105, so next will be −140.
Therefore:
940 − 140 = 800
So, the missing number is 800.