Question

A distance of 500km is covered in 9hrs, partly at 50km/hr remaining at 60km/hr. Find the distance covered at 50km/hr..

Answer 1

Step-by-step explanation:

Let the time for which it travels at 50km/h be xhr

time for which it travels at 60km/h =(x-9)hr

distance which it covers in 60 km per hour = 60(x-9) km

distance which it covers at 50 kilometre per hour=50x km

Total distance covered=500 km

BTP,

60(x-9) + 50x = 500

60(x-9) + 50x = 500=} 110x - 540 = 500

60(x-9) + 50x = 500=} 110x - 540 = 500=} 110x =1080

60(x-9) + 50x = 500=} 110x - 540 = 500=} 110x =1080 please solve the rest by yourself