Q1. The average score of a cricketer for ten matches is 38 9 runs If the average for the first six matches is 42 then find the average for the last four matches

Q2. In a race with 10 competitors the first place finisher receives a gold medal the second place finisher receives a silver medal and the third place finisher receives a bronze medal If there are no ties in how many different ways may these three medals be awarded

Q3. Average age of seven persons in a group is 30 years The average age of five persons of this group is 28 years What is the average age of there other two persons in the group

Q4. In a coconut grove x 2 trees yield 60 nuts per year per tree x trees yield 120 nuts per year per tree and x 2 trees yield 180 nuts per year per tree If the average yield per year per tree be 100 Find the value of x

Q5. The mean daily profit made by a shopkeeper in a month of 30 days was Rs 350 If the mean profit for the first fifteen days was Rs 275 then the mean profit for the last fifteen days would be