The average runs of a cricketer in a tournament, in which he played 14 matches, are 47. His average runs in the first seven matches are 57 and that in the last five matches are 44. If the runs made by him in 8th match are 15, how many runs did he make in 9th match?
An equal amount of sum, Rs. P is invested in scheme A and scheme B. Both the schemesA and B offer simple interest at the rate of 12% and 9% respectively. If at the end of two years total amount received from both the schemes together was Rs. 21,780, what is the value of P?