1.The combined average monthly income of P and Q is Rs. 5050, while that of Q and R is Rs. 6250. The average monthly income of P and R together is Rs. 5200. What is the monthly income of P?
2.The mean weight of individuals A, B, and C is 45 kg. If the average weight of A and B is 40 kg, and the average weight of B and C is 43 kg, what is the weight of B?
3.A class has 15 students with an average age of 15 years. Among them, 5 students have an average age of 14 years, and 9 students have an average age of 16 years. What is the age of the remaining 15th student?
4.A student's score was mistakenly recorded as 83 instead of 63. As a result, the class average increased by 0.5 marks. How many students are there in the class?
5.The average of 50 data points was initially calculated as 36. Later, it was discovered that a value recorded as 23 should have been 48. What is the revised average after correcting this error?
6.The average of 75 numbers is 35. If 5 is added to each of these numbers, what will be the new average?
7.During the first 10 overs of a cricket match, the team scored at a rate of 3.2 runs per over. What must be the run rate for the remaining 40 overs to achieve a total of 282 runs?
8.A cricket player has an average score of 32 runs over 10 innings. How many runs must he score in his next innings to raise his average by 4 runs?
9.In a class of 35 students, the average age is 16 years. If the average age of 21 students is 14 years, what is the average age of the remaining 14 students?
10.The mean of five numbers is 27. When one number is removed, the mean of the remaining four numbers drops to 25. What is the value of the number that was removed?
11.A library receives an average of 510 visitors on Sundays and 240 visitors on each of the other days. If a 30-day month starts on a Sunday, what is the average daily number of visitors for that month?
12.A family includes two grandparents, two parents, and three grandchildren. The grandparents have an average age of 67 years, the parents average 35 years, and the grandchildren average 6 years. What is the overall average age of all family members combined?
13.The mean of five consecutive odd integers is 61. What is the difference between the largest and smallest of these numbers?
14.A non-zero number and its square have an average equal to five times the number. What is the number?
15.What is the mean value of all two-digit numbers that remain unchanged when their digits are reversed?
16.What is the mean value of the first five multiples of 3?
17.What is the mean of all numbers divisible by 5 that lie between 6 and 34?
18.If the mean of 20 numbers is zero, what is the maximum number of these numbers that can be positive?
19.Sarfaraz scored 76, 65, 82, 67, and 85 marks out of 100 in English, Mathematics, Physics, Chemistry, and Biology respectively. What is his average score?
20.A total of 3000 chocolates were shared among 120 children, consisting of boys and girls. Each boy was given 2 chocolates, while each girl received 3 chocolates. How many boys and girls were there respectively?