Part C - Elementary Mathematics
A batsman makes a score of 97 runs in 15th inning and thus increases his average by 5. Find his average after 15th inning.
A can paint seven chairs in an hour and B can paint four chairs in an hour. Determine how much time they will require to paint 55 chairs when they work together.
The marked price of a washing machine is Rs.23,500 and the shopkeeper sold it for Rs.20,915. What is the percentage of discount offered by the shopkeeper?