Question

The difference between the speeds of A and B is 10 km/hr. To travel a distance of 600 km, B takes 3 more hours than A. Find the time B will take to cover a distance of 2400 km.​

Answer 1

QUESTION:-The difference between the speeds of A and B is 10 km/hr. To travel a distance of 600 km, B takes 3 more hours than A. Find the time B will take to cover a distance of 2400 km.

Answer:- Speed of A X km/h

Speed of B Y km/h

$\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: x - y = 10$

$\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: x = y + 10$

$\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \frac{600}{x} {h}^{}$

$\: \: \: \: \: \: \: \: \: \: \: \: \: \frac{600}{y} - \frac{600}{x} = 3$

$\: \: \: \: \: \: \: \: \: \: \frac{600}{y} - \frac{600}{y + 10} = 3$

then find LCM of it ⬆️ then divide with 2400km