in a triathlon , an athlete swims 750m in 15 minutes, cycles at an average speed of 40km/h for 30 minutes and runs 5 km at an average speed of 3m/s . find his average speed for the entire competition giving your answer in km/h

Answer 1

avg speed is total distance divided by total time. So, expressing all distances in km, and all times in hours, and recalling that
time = distance/speed

(0.750 + (40 * 1/2) + 5)km/(0.25 + 0.5 + 5000/3 * 1/3600)hr
= 21.229 km/hr

Answer 2

its a bad question . it is not getting solved by anyone