The table shows the number of software development projects handled by companies A and B from 2016 to 2020 (Government and Non-Government projects combined).
| Year | Company A | Company B |
|---|---|---|
| 2016 | 180 | 130 |
| 2017 | 230 | 320 |
| 2018 | 360 | 210 |
| 2019 | 250 | 190 |
| 2020 | 300 | 350 |
By what percent did the number of projects handled by Company B decrease from 2017 to 2019?
A40 and 5 by 8 percent ✓ Correct
B45 and 3 by 8 percent
C35 and 5 by 8 percent
D30 and 7 by 8 percent
Correct answer: (A) 40 and 5 by 8 percent
Explanation
The decrease is 40 and 5 by 8 percent, so the answer is 40 and 5 by 8 percent.
Company B handled 320 projects in 2017 and 190 in 2019.
The fall in projects is 320 minus 190, which is 130.
The percentage decrease is 130 divided by 320, times 100.
This gives 13000 over 320, which is 40.625.
As a mixed number 40.625 is 40 and 5 by 8.
So the decrease is 40 and 5 by 8 percent.
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