Average pocket allowance of 6 students is Rs. 45. Of these, pocket allowance of 5 students is 20, 30, 22, 24 and 32 respectively. What is the pocket allowance of the sixth student?

Pocket allowance of 10 students is Rs. 15,20,30,22,25,18,40,50,55 and 65. Find out the average pocket allowance.

Pocket allowance of 5 students respectively are: 125, 75, 150, 175, 200 Find out arithmetic mean.

The daily pocket expenses of A and B are Rs 60 and Rs 75 respectively. What is the ration of their expenses in simplest form?

Mean pocket allowance is Rs18. Find the missing frequency k.

The average weight of 100 students is 32 kg. The average weight of first 49 students is 30 kg and that of last 50 students is 34 kg. What is the weight (in kg) of the 50th student?

The number of students in section A and section B of a class are 40 and 52, respectively. The average score in mathematics of all the students is 75. If the average score of the students in A is 20% more than that of students in B, then what is the average score of students in B?