The distance between two places A and B on road is 70 kilometers. A car starts from A and the other from B. If they travel in the same direction, they will meet after 7 hours. If they travel towards each other they will meet after 1 hour, then find their speeds.
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Answer
Hay Guys!!!!!
speed of car a is 40 kilometre per hour
speed of car b is 30 kilometre per hour
Step-by-step explanation:
let let the speed of car a x kilometre per hour
let the speed of car b be y kilometre per hour
the speed of a car a and b when they are moving in same direction is x-y
speed of car a and b when they are moving at different directions be x+y
from given information
case 1: travel travel at same direction and meet after 7 hours
distance between these points is 70 km
7(x-y) =70
x-y =10. 1
case 2 : speed of car a and b if they are moving at different direction and meet after 1 hours
x-y =70. 2
adding 1and 2
2x=80
x=40
y=30
Hope it may help you and please please please please mark it as brainlist answer