Average Questions

The mean of 10 observations is 13. Two more observations are included and the new mean becomes 14. The mean of two new observations is

Of the 3 numbers whose average is 40, the first is 1/3 rd the sum of other 2. What is the first number?

The average marks obtained by a class of 60 students is 65. The average marks of half of the students is found to be 85. The average marks of the remaining students is

The average weight of 10 parcels is 1.7 kg. Addition of another new parcel reduces the average weight by 60 gram. What is the weight , in kg, of the new parcel?

What is the average of all the one digit and two digit natural numbers?

The mode of the data 12, 1, 10, 1, 9, 3, 4, 9, 7, 9 is

The average weight of P, Q and R is 71 kg. If the average weight of P and Q be 66 kg and that of Q and R be 76.5 kg, then the weight (in kg) of Q is.

In an exam, the avarage marks obtained by John in English, Maths, Hindi and Drawing were 50. His average marks in Maths, Science, Social Studies and Craft were 70. If the average marks in all seven subjects is 58, his score in maths was