In the first 20 overs of a cricket game, the run rate was only 2.4 per over. What should the run rate in the remaining 30 overs be to reach a target of 308 runs? [Give your answer correct to one decimal place.]
The curved surface area of a right circular cone is 44 sq.cm . If the slant height of the cone is 7 cm, then find the radius of its base. [Use π = 22/7]
The average of nine numbers is 20. If two of these numbers are removed, then the average becomes 18. What is the sum of the two numbers that are removed?
There is 10% water in a 40-litre solution of milk and water. If 10 litres of water are added to this solution, then what percentage of the new solution will be water?