Question:
Tick (✓) the correct answer:
A machine fills 420 bottles in 3 hours. How many bottles will it fill in 5 hours?
(a) 252
(b) 700
(c) 504
(d) 300
Solution:
(b) 700
Let x be the number of bottles filled in 5 hours.
| No. of bottles | 420 | |
| Time (h) | 3 | 5 |
More number of bottles will be filled in more time.
Now, $\frac{420}{3}=\frac{x}{5}$
$\Rightarrow x=\frac{420 \times 5}{3}$
$\Rightarrow x=700$
Therefore, 700 bottles would be filled in 5 h.