At the eating contest the winner ate an average of 15 ladoos at the first 20 sittings. After a further 20 sittings the average increased to 20 ladoos. What was the average for the last 20 sittings?
In a cricket match the average number of runs in the first 15 overs was two.
After a further 15 overs, the average rose to nine.
What was the average number of runs in the last 15 overs only?
At the state fair eating contest the winner ate an average of 15 burgers at the first 20 sittings. After a further 20 sittings the average increased to 20 burgers. What was the average for the last 20 sittings?
A cyclist covers his outward journey at 15 mph.
The return, over exactly the same distance, is uphill. He completes it at 5 mph.
What is the cyclist's average speed over the entire journey?
In an assessment the first 17 people scored an average of three points each. After a further 30 people had taken the assessment the average score rose to nine points each. What was the average number of points scored by the last 30 people only?
Kiran rides her scooter 14 km at an average speed of 16 km per hour and again travels 16 km at an average speed of 14 km per hour. What is her average speed for the entire trip approximately?
