Question
Usha and Henry have a bicycle race. Usha cycles at a speed of 18 km/h. Henry cycles at a speed of 23 km/h. If Henry lets Usha start 50 min before him, how long will Henry take to catch up with Usha?
3 m

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Usha and Henry have a bicycle race. Usha cycles at a speed of 18 km/h. Henry cycles at a speed of 23 km/h. If Henry lets Usha start 50 min before him, how long will Henry take to catch up with Usha?