A bus travels at a speed of 40 km/hr. Write the distance-time formula and draw the graph of it. Hence, find the distance travelled in 3 hours.

Suppose a body X travels a at a speed of S km/h for T hours then the distance covered by him will be D and its given as

D = ST km

Here speed of bus, s = 40 km/hr

Travel time , t = 3hrs

So using this we can find a set of distance and put them in graph to find the exact distance travelled by the bus

to know the distance covered by the bus at three hours draw a line parallel to Y-axis from X = 3 to the curve and from the intersecting point of that line and the curve draw another line parallel to X-axis and the point at which the line intersect the Y-axis will give the distance coveredso from the graph it’s clear that as the bus was running for 3 hrs. and it covered a distance of 120 km.