The table shows employees in five companies A to E in December 2021 and the percentage of Science, Commerce and Arts graduates (only these three types). Dashes are missing values to be calculated if required.
| Company | Employees | Science (%) | Commerce (%) | Arts (%) |
|---|---|---|---|---|
| A | 2100 | 32 | — | — |
| B | 1400 | — | 31 | 40 |
| C | — | 30 | 30 | — |
| D | — | — | 40 | 20 |
| E | — | 35 | 50 | — |
In Company B, if the number of employees increased by 20 percent from December 2021 to December 2022, and 20 percent of the total employees in December 2022 are Science graduates, then the number of Science graduate employees in December 2022 is
A588
B532
C336 ✓ Correct
D504
Correct answer: (C) 336
Explanation
The number of Science graduate employees is 336, so the answer is 336.
Company B had 1400 employees in December 2021.
A 20 percent increase makes this 1400 times 120 over 100.
So the December 2022 total is 1680 employees.
Of these, 20 percent are Science graduates.
So the Science graduates are 1680 times 20 over 100.
That equals 336.
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