Parul and Tanu ran a 200 m race, Parul completed the race in `2/3` minutes and tanu in `4/8` more time? Give reason.

Parul and Tanu ran a 200m race,Parul completed the race in (2)/(3) minutes and tanu in (4)/(8) more time? Give reason.

Ajay and Rahul, are participating in a 100 m race. Ajay runs with a speed of 5 m/s. Rahul takes 5 s more than Ajay to complete the race.What is the speed of Rahul?

A racing car completes 5 rounds of a circular track in 2 minutes. Find the radius of the track if the car has uniform centripetal acceleration of pi^2ms^-2 .

Two cars A and B race each other. The Car A ran for 2 minute at a speed of 7.5 km/h, slept for 56 minute and again ran for 2 minute at a speed of 7.5 km/h. find the average speed of the car A in the race.

The time taken by Rohan in five different races to run a distance of 500 m was 3.20 minutes, 3.37 minutes, 3.29 minutes, 3.17 minutes and 3.32 minutes. Find the average time taken by him in the races.

In a race of 800 m Dholakiya gives Preetam a start of 200 m and then loses the race by 20 seconds. What is the speed of Preetam and Dholakiya respectively? If the ratio of respective speeds be 3 : 2.