A takes 3 hrs more than B to walk a distance of 30 km. but if A doubles his speed he is ahead of B by 1.5 hrs . Find the speed of A and B
Answers
Answered by
1
Answer:
A's speed 10km/3hr B's speed 5km/hr
Step-by-step explanation:
let B's speed be xkm/hr and A's speed be ykm/hr than time taken by B is 30/x
so time take by A is (30/x)+3
now we have
30/y = (30/x)+3 ( 1st equation)
in second condition when A's doubles his speed the equation is 30/2y = (30/x)-1.5 (2nd equation)
solving this we get A's speed y=10km/3hr and B's speed x 5 km/hr
Similar questions
Environmental Sciences,
6 months ago
Chemistry,
6 months ago
Computer Science,
1 year ago
Math,
1 year ago