Question:
A woker is paid Rs 200 for 8 days work. If he works for 20 days, how much will he get?
Solution:
Let Rs x be the income for 20 days of work.
Since the income and the number of working days are in direct variation, we have:
$\frac{200}{x}=\frac{8}{20}$
$\Rightarrow 200 \times 20=8 x$
$\Rightarrow x=\frac{200 \times 20}{8}$
$=\frac{4000}{8}$
$=500$
Thus, the worker will get Rs 500 for working 20 days.