Question

Increase $1200$ in the ratio $2:3$ and then decrease the resulting number in the ratio $10:3$

Answer 1

Given
Increase in the ratio $=2:3$
Given quantity $=1200$
Hence the decreased quantity can be calculated as given below
The increased quantity $=\frac{3}{2}\times$ given quantity
$=\frac{3}{2}\times 1200$
$=1800$
Now
The quantity is decreased in the ratio $10:3$
Therefore the final quantity can be calculated as given below
Final quantity $=\frac{3}{10}\times 1800$
$=540$
Thus the final quantity is $540$