The average weight of 4 persons is 50 kg. The heaviest person’s weight is 20 kg more than the lightest person’s weight. If the average weight of the...
In a World Cup match, the average runs scored by Virat Kohli in his first 8 matches are 28. What should be his average score in the next two matches for...
In a school with 400 students, the average of the age of the boys is 16 years and that of the girls is 12 years. If the average age of the school is 14 ...
- The average marks of 55 students in a class were calculated as 72. However, there were errors in recording the marks of four students. The incorrect marks ...
Average age of 30 students is 14 years. If 6 students leave the class, then the average age decreases by 0.5 years. Find the average age of the students...
There are 15 natural numbers whose average is 30.6. The average of the first 8 numbers is 28, and the average of the last 8 numbers is 33. Find the eigh...
Average run scored by a batsman in 20 innings is 90. In next 6 innings, he scored runs with an average of ‘x’ so that his overall average increases ...
A team consists of a certain number of members. If 4 people with an average weight of 65 kg leave the team, the average weight of the remaining members ...
How many identical spherical marbles having a diameter of 4 cm can be made by melting a hemisphere of radius 28 cm? (Use π = 22/...
The average expenditure of Mr. Sharma for January to June is Rs. 4200 and he spent Rs. 1200 in January and Rs. 1500 in July. The average expenditure for...
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