The average of 10 numbers is 18. When two new numbers 'a' and 'b' are added, the average increases by 2. If a - b = 30, find the value of b.
The average of ten numbers is A. If c is subtracted from each number except the tenth and (c-1) is subtracted from the tenth number, then what will be t...
The mean of 7 consecutive natural numbers is 68. What is the addition of the minimum and maximum numbers?
A player scored an average of 58 runs per match in the first 30 matches. In his next 10 matches, he scored runs with an average of ‘x’ runs per matc...
Average run scored by a batsman in 16 innings is 40. In next 6 innings, he scored runs with an average of ‘x’ so that his overall average increases ...
Consider three positive numbers that form a ratio of 2:3:4. If the sum of the squares of these numbers is 2349, what is the average of the largest and t...
Bag A and Bag B contain balls in the ratio of 7:6, while Bag B and Bag C have balls in the ratio of 2:3. If the average number of balls across all three...
The average salary of 12 employees in a company is Rs.45,000 per year. When two new employees, Alice and Bob, join the company, their salaries being in ...
Average weight of a team of 18 persons is 40 kg. When one more person joins the team, the average weight of the team increases by 4 kg. Find the weight ...
The certain sum amounts to Rs11313.5 in 2(1/2) years at 12% p.a., interest compounded 10 months. The sum (in Rs) is:
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