Book Maths Puzzle

. Suresh drives his car to a place 150 km away at an average speed of 50 km/hr and returns at 30 km/hr. What is his average speed for the whole journey ?

Read Solution (Total 1)

37.5km/hr
(2*50*30)/(50+30)=37.5
11 years agoHelpfull: Yes(0) No(0)

Book Other Question

The average score of a cricketer for ten matches is 38.9 runs. If the average for the first six matches is 42, what is the average for the last four matches? In an examination, a student's average marks were 63. If he had obtained 20 more marks for his Geography and 2 more marks for his history, his average would have been 65. How many subjects were there in the examination?