For finding average speed of a vehicle covering equal distances in different time intervals, we prefer to use (a) A.M.         (b) G.M.          (c) H.M.         (d) Median

Find average speed of 40m/s and 50m/s.

A particle moving in a straight line covers half the distance with speed of 3 m/s. The other half of the distance covered in two equal time intervals with speed of 4.5 m/s and 7.5 m/s respectively. The average speed of the particle during this motion is :-

A particle moving in a straight line covers half the distance with speed of 3 m//s . The half of the distance is covered in two equal intervals with speed of 4.5 m//s and 7.5 m//s respectively. The average speed of the particle during this motion is :

A particle moving in a straight line covers first half of the distance into two equal time intervals with speed of 2 m/s and 4 m/s respectively, and second half with the speed of 5 m/s. The average speed of the particle is

If the A.M between a and b is m times their H.M then a:b is

Find two positive numbers whose difference is 12 an whose A.M. exceeds the G.M. by 2.

For dealing with qualitative data the best average is:- a) AM b) GM c) Mode d) Median

Find the M.D. from A.M. of the following distribution :

If the ratio of H.M. and G.M. between two numbers a and b is 4:5 , then find the ratio of the two number ?

If pi is taken as 22//7 , the distance (in metres) covered by a wheel of diameter 35 cm, in one revolution, is (a) 2.2m (b) 1.1m (c) 9.625m (d) 96.25m