Question

Vansh spends $₹\mathrm{x}$ daily and saves$₹\mathrm{y}$ per week. What is his income in $4$weeks?

Answer 1

Amount of money spent in one day $=₹\mathrm{x}$
So, the amount of money spend in $7$ days $=₹7\mathrm{x}$

⇒Amount of money spend in $4$ weeks $=₹7\mathrm{x}=₹7\mathrm{x}\times 4=₹28\mathrm{x}$
Amount of money saved per week $=\mathrm{y}$
∴ Income in $4$ weeks $=4\times \mathrm{y}=4\mathrm{y}$
Thus, income in $4$ weeks $=₹(28\mathrm{x}-4\mathrm{y})$