Question

Rice costing $Rs.960$ is needed for $16$ members for $40$ days. What is the cost of rice required for $24$ members for $15$ days.

Answer 1

Cost of rice for $16$ members for $40$ days $=Rs.960$

Cost of rice for $1$ member for $40$ days $=\frac{960}{16}=Rs.60$

Cost of rice for $1$ member for $1$ day $=\frac{60}{40}=Rs.\frac{3}{2}$

Therefore,

Cost of rice for $24$ members for $1$ day $=\frac{3}{2}\times 24=Rs.36$

$\therefore$ cost of rice for $24$ members for $15$ days $=15\times 36=Rs.540$