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The average cost of three chairs is Rs.10000. The average cost decrease by 10% when one more chair is included. What is the cost price of the 4th
The average age of 15 children and their teacher's age are 12 years. If the teacher's age is excluded, the average reduces by 2. What is the teacher's age?
The average age of a class of 18 girls is 14 years. If 2 new girls having average age of 10 years join the class, then the average age of the class beco...
The average age of a group of 24 persons is found to be 28 years. Later it is found that age of two of the persons is calculated as 32 and 64 instead of...
The university has 750 faculty (male and female only) out of which the females are 60%. The average height of females is 162 cm and that of males is 168...
"X" acquired 15 books at a cost of Rs. 840 each and an additional 25 books at a price of Rs. 480 each. Determine the average price per book "X" bought.
The average salary of a group of 12 employees is Rs. 60,000. When one employee departs, the average salary of the remaining 11 employees drops by Rs. 2,...
The average of two numbers is 25, and the square root of their product is 20. What is the difference between the two numbers?
The average of 25 numbers is 40. If 2 is added to each number, then the new average will be:
