The average height of 8 boys in a basketball team is 180 cm. If the tallest boy leaves, the average becomes 175 cm. Find the height of the boy who left.
- Given that the average of 21, 38, 62, 53, 35, and 'x' is 48, what is the value of 'x²'?
A marked an article 60% above the cost price and sold it for Rs. 450 after giving a discount of 10%. Find the percentage profit earned by him if he sell...
What is the average of the squares of the first 29 natural numbers?
Average of 10 numbers is 45. If 40 and 50 are removed, find new average.
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...
A batsman averages 28.4 runs in 15 innings. In the next three innings, he scores 45, 89 and 52. Find his new batting average.
The average age of a class of 24 girls is 16 years. If 6 new girls having average age of 12 years join the class, then the average age of the class beco...
The average age of 26 children and their teacher's age are 22 years. If the teacher's age is excluded, the average reduces by 1. What is the teacher's age?
A group of 35 people has an average age of 28 years. Later, 7 more people join the group and the average age becomes 25 years. What is the average age o...
