Math, asked by pritamkumarjmt, 5 hours ago

4.
A train covers 50% of the journey at 30 km/hr, 25% of the
journey at 25 km/hr and the remaining at 20 km/hr. Find
the average speed of the train during the whole journey. ​

Answers

Answered by Narendra1980ram
3

Answer:

One-third of a certain journey was covered at the speed of 20 km/hr, one –fourth at 30 km/hr and the rest at the speed of 50 km/hr. find the average speed peer hour for the whole journey.

Previous Question
Next Question
Similar questions
Science, 3 hours ago
1. A 50-kg astronaut ejects g of gas from propulsion pistol at a velocity of 50m/s. What is his resulting velocity? 2. Two 0.5 kg balls approach each other with the same speed of 1.0 m/s. What is the total momentum of the system before collision? 3. Using the same problem on no. 2 if there is no external force acting on a system, what is the total momentum of the system after collision​...
Science, 3 hours ago
5) which spectroscopy is concerned with the interaction of EMR with molecules. I​...
Math, 3 hours ago
Find if 5 5/6 + (−3 8/9 ) + = 1​...
Hindi, 5 hours ago
पाण्डव कितने वर्ष तक वन में रहें थे ?​
Math, 5 hours ago
5/6 of 3/4 ÷ 7/8 ×1 whole 1/2​...
Math, 7 months ago
Find the antroid of triangle abc whose vertices are a(-3 0) b(5 -2 c(-8 5))...
Environmental Sciences, 7 months ago
Bio diversity discovered by water G.Rosen in ......
Computer Science, 7 months ago
what do you mean by machine language?​