Question

A car moves at a uniform speed of $(x+30)km/hr$. Find the distance covered by the car in $(y+2)$ hours.

Answer 1

Speed of the car $=(x+30)km/hr$.
Time $=(y+2)$ hours
Distance $=$ Speed $\times$ time
$\begin{array}{cc}& =(x+30)(y+2)=x(y+2)+30(y+2)\\ & =\left(x\right)\left(y\right)+\left(x\right)\left(2\right)+\left(30\right)\left(y\right)+\left(30\right)\left(2\right)\\ & =xy+2x+30y+60\end{array}$
Distance covered $=(xy+2x+30y+60)km$.