A, B and C alone can complete a piece of work in 24, 36 and 18 days respectively. A started working, after 2 days C joins with them and B joins with them after another 2 days, then find the no of days A, B and C worked together.

The average of all the numbers between 6 and 50 which are divisible by 5 is

The average of 100 numbers is 44. The average of these 100 numbers and 4 other new numbers is 50. The average of the four new numbers will be

The mean of 9 observations is 16. One more observation is included and the new mean becomes 17. The 10th observation is

By selling an article at 2/3 of the Marked price, there is a loss of 10%. The profit percent when the article is sold at the Marked prices

A shopkeeper on selling 33 metres of cloth obtain a profit equal to the selling price of 11 metre of cloth the profit is

A cloth merchant on selling 33 metres of cloth obtain a profit equal to the selling price of 11 metre of cloth the profit is

By selling 100 pencils, A shopkeeper gains the selling price of 20 pencils. His gain percentage is