Question

ravi start for his school at 8:20 am on his bicycle if he travells at the speed of 10 km/hr and reaches school late by 8 minutes but travelling at speed of 16km/hr he reaches his school early by ten minutes at what time does the school starts​

Answer 1

Answer:

If the speed of the bicycle is 16 km/h, then he reaches his school 10 min early. Hence starting time of school is 8:20 + 40 min i.e. 9:00 am

Step-by-step explanation:

Hope that helps you a lot dear

Answer 2

Answer:

Let the total distance = x km Let the time taken by Ravi to reach the school at sharp time = t min If the speed of the bicycle is 10 km/h, then he reaches his school late by 8 min If the speed of the bicycle is 16 km/h, then he reaches his school 10 min early. On subtracting equation (2) from (1) Now, put x = 8 in Eq. (i), we get Hence starting time of school is 8:20 + 40 min i.e. 9:00 am.Read more on Sarthaks.com - https://www.sarthaks.com/860868/ravi-starts-for-his-school-at-8-20-a-m-on-his-bicycle