Average with Explanation

Q15. The average price of 10 toys is Rs. 12 while the average price of 8 of these toys is Rs. 11.75. Of the remaining two toys, if the price of one book is 60% more than the price of the other, what is the price of each of these two toys?

A. Rs. 10, Rs. 16 B. Rs. 16, Rs. 22
C. Rs. 5, Rs. 7.50 D. Rs. 14, Rs. 10

Q16. The average age of the father and the eldest daughter is five times the average age of 3 daughters in a family. The total age of the youngest daughter and the mother is 39 years. If the father's age is 26 years, what is the age of the second daughter?

A. 20 years B. 16 years
C. 18 years D. Cannot be determined

Q17. A shopkeeper has a sale of Rs. 7230, Rs. 6927, Rs. 6562, Rs. 6435, and Rs. 6855 for five consecutive months. To get an average sale of Rs. 6500, how much sale he must have in the sixth month?

A. Rs. 5111 B. Rs. 4991
C. Rs. 5991 D. Rs. 5001