A thief escapes in a car driving at 60 km/h towards a city 400 km away. Only after 30 minutes,
the police start to chase at 80 km/h. What distance will the police have covered when the thief
is caught?
lets assume , Â
 Police caught the thief d1 km laterÂ
Time Taken by Thief for d1 km = D/60 hr
Time Taken by Police = d1/80 hr
d1/60Â - d1/80Â = 1/2Â Â ( 30 Mins = 1/2 hr)
taking lcm of 60 and 80
4d1 - 3d1= 120
=> d1 = 120 km
therefore, d1 = 120km
Create a FREE account and get:
