Question

An athlete covers 400 m in 40 seconds. Find:
(a) his speed
(b) distance covered by him in 20 minutes
(c) time taken by him to cover 875 m​

Answer 1

Answer:

a) spd = dist/time

     = 400/40

       10 m/s

b) 20 mins = 20 * 60

              =   1200 secs

         distance in 1200 secs = spd * time

                = 10 * 1200

               = 12000 m or 120 km.

c) spd = dist/time

        = time = dist / spd

                   = 875/10

                = 87.5 secs.  

Step-by-step explanation:

Answer 2

Answer:

Step-by-step explanation:

Answer:

a) spd = dist/time

    = 400/40

      10 m/s

b) 20 mins = 20 * 60

             =   1200 secs

        distance in 1200 secs = spd * time

               = 10 * 1200

              = 12000 m or 120 km.

c) spd = dist/time

       = time = dist / spd

                  = 875/10

               = 87.5 secs.  

Step-by-step explanation: