Question

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

• A. $x+32xy+60$ km
• B. $xy+30y+50$ km
• C. $y+32x+60$ km
• D. $xy+2x+30y+60$ km

Answer 1

The correct option is D $xy+2x+30y+60$ km

We know, distance = speed × time
Here, speed = $x+30$ km/hr
and time = $y+2$ hours
So, distance = $(x+30)\times (y+2)$
= $x(y+2)+30(y+2)$
= $xy+2x+30y+60$
= $xy+2x+30y+60$ km