The times(in second) taken by 150 atheletes to run a 110 m hurdle race are tabulated below

The number of atheletes who completed the race in less than 14.6s is

The times, in seconds, taken by 150 athletes to run a 110 m hurdle race is tabulated below: The number of athletes who completed the race in less than 14.6 seconds is

The time taken by 50 students to complete a 100 meter race are given below. Find its standard deviation.

The result of an examination is tabulated below: Draw the ogive for the above data and from it determine: the number of candidates who got marks less than 45

A takes 5 hours more time than that taken by B to complete a work. If working together they can complete a work in 6 hours, then the number of hours that takes to complete the work individually is

An athelete runs 400meters race in 24 seconds. His speed (in km/hr) is

An athelete runs alongs a circular track of radius 14 m with a speed of 11 m s^(-1) then the time taken by the althete to complete 6 rounds is ______

In a 1000 m race, X beats Y by 140 m or 14 s. What will be the X's time over the course?