Question

A child ran 50 meter in first, 55 m in second, 60 m in fourth and 70 m in fifth minute. find out his average distance covered in five minutes?

Answer 1

U can solve ur question like this
Total distance travelled in 1 ½ hour
= 50 + (&frac; x 32) km
= 66 km
∴ Average speed = Total distance/Total time
= 66/(3/2) = 44 kmph.

Answer 2

First convert 5 min to second then divide each 50,55,60,75 with 5. Then after dividing it, add them all and then again divide it by 5.
Thus u'll be getting ur correct answer.
Hope it helps!!
Just follow these instructions and then it surely help!!