The average weight of 8 person’s increases by 2.25 kg when a new person comes in place of one of them weighing 65 kg. What might be weight of the new person ?

A grocer has sale of Rs. 6435, Rs. 6927, Rs, 6855, Rs. 7230 and Rs. 6562 for 5 consecutive months.  How much sale must he have in the sixth month  so that he gets an average sale of Rs. 6500.

The average weight of 16 boys in a class is 50.25 kg and that of the remaining 8 boys is 45 .15 kg.  Find the average weight of  all the boys in the class.

The average monthly income of  P  and Q is Rs. 5050.  The  average monthly income of  A and R is Rs. 6250 and the average monthly income of  P  and R  is Rs. 5200.  The monthly income of  P is ______.

Collection on seven days of the first week of April is Rupees 6432, 7250, 9218, 7111, 8540, 4560 and 6700. Find one day’s average.

The captain of a cricket team of 11 members is 26 years old and the wicket keeper is 3 years older. If the ages of these two are excluded, the average age of the remaining players is one year less than the average age of the whole team. What is the average age of the team ?

The students in the Science club of Ezhimala G.U.P school conducted a survey on the consumption of electricity in 6 houses.  They found out that the average monthly consumption is 150 unites.  Then the houses started using CFL bulb.  In the survey after one month.  They found that there was a decrease of  180 units in  consumption.  What is the average consumption ?

The average weight of the 35 students of  the A division of class 6 is 32 kilograms.  The average weight of the 40 students of B division is 36 kilograms.  What is the average weight of the two division s altogether ?

The average weight of A, B and C is 45 kg. If the average weight of A and B be 40 kg and that of b and C be 43 kg. Then the weight of B be.

In a certain country 2400 crore kilograms of food grains are consumed a year. If the per capita consumption is 200 kilograms, find the population of the country?