A man spends his three months income in four month time. If his monthly income i
A man spends his three months income in four month time. If his monthly income is Rs. 1000 then his annual savings is ?
The average weight of a group of 20 boys was calculated to be 89.4 kg and it was
The average weight of a group of 20 boys was calculated to be 89.4 kg and it was later discovered that one weight was…
Average weight of 25 persons is increased by 1 kg when one person weighing 60 kg
Average weight of 25 persons is increased by 1 kg when one person weighing 60 kg is replaced by a new person. Weight of…
A batsman in his 12 th innings makes a score of 63 runs and there by increases h
A batsman in his 12 th innings makes a score of 63 runs and there by increases his average score by 2. What is…
The average age of Ram and his two children is 17 years and the average age of R
The average age of Ram and his two children is 17 years and the average age of Ram’s wife and the same children is…
Out of 10 teachers of a school, one teacher retires and in place of him a new te
Out of 10 teachers of a school, one teacher retires and in place of him a new teacher 25 years old joins. As a…
The average weight of 12 parcels is 1.8 kg. Addition of another new parcel reduc
The average weight of 12 parcels is 1.8 kg. Addition of another new parcel reduces the average weight by 50 gm. What is the…
The average age of 11 players of a cricket team decreases by 2 months when two n
The average age of 11 players of a cricket team decreases by 2 months when two new players are included in the team replacing…
Six tables and twelve chairs were bought for Rs. 7800. If the average price of a
Six tables and twelve chairs were bought for Rs. 7800. If the average price of a table is Rs. 750, then the average price…
The mean of 50 numbers is 30. Later it was discovered that two entries were wron
The mean of 50 numbers is 30. Later it was discovered that two entries were wrongly entered as 82 and 13 instead of 28…
The average of six numbers is 20. If one number is removed, the average becomes
The average of six numbers is 20. If one number is removed, the average becomes 15. What is the number removed ?
Average of n numbers is a. The first number is increased by 2, second one is inc
Average of n numbers is a. The first number is increased by 2, second one is increased by 4, the third one is increased…