The ratio between the speed of a truck, car, train is 3 : 8 : 9.The car moved uniformly and covered a distance of 1040 km in 13 h. What is the average speed of the truck and the train together?
Answers
Answered by
2
here we have given speed of car ie8x and time is 13h and distance is1040km so 8x=1040÷13 x=10 8x=8×10=80and speed of truck and train is 3o and 90 so average speed is 30+90÷2=60
Similar questions