SOLUTION: Need help for the following sum:
A starts walking north from Point X at 7 a.m. with a speed of 5 km/hr. After 1 hr, B starts from the same point cycling towards the east with a
Algebra ->
Customizable Word Problem Solvers
-> Travel
-> SOLUTION: Need help for the following sum:
A starts walking north from Point X at 7 a.m. with a speed of 5 km/hr. After 1 hr, B starts from the same point cycling towards the east with a
Log On
Question 486393: Need help for the following sum:
A starts walking north from Point X at 7 a.m. with a speed of 5 km/hr. After 1 hr, B starts from the same point cycling towards the east with a speed of 16 km/hr. At what time will they be at a distance of 52 km from each other?
Thanks Answer by mananth(16946) (Show Source):
You can put this solution on YOUR website! A ---- North ---- 5 km/h
B----- east ------16km/h (After 1 hour)
let the time be t
A distance 5t+5
B distance 16 t
(5t+5)^2+(16t)^2=52^2 ( I have used x in place of t)
25t^2+50t+25+256t^2=52^2
281t^2+50t-2679 =0
Find the roots of the equation by quadratic formula
