A man earns a profit of 60% when he sells an article at 4/3 of the original selling price. Find the percent profit he makes at original price.

10 men can finish painting a wall in 8 days. How many more men will be needed if the painting work is to be finished in 4 days?

The ratio of speeds of A is to B is 2:3 and therefore A takes 20 minutes less time than B takes. What is the ratio of time taken by A and B?

The average weight of 5 persons sitting in a boat is 38 kg. The average weight of the boat and the persons sitting in the boat is 52 kg. What is the weight of the boat?

Neena and Meena started a business with investment of Rs. 30,000 and Rs. 45, 000 Respectively. What will be the share of Meena from the profit of Rs.1,50,000 after  2 years?

A watch is sold at a profit of 25%. Had it been sold for Rs.120 less then, there would have been a less then of 15%. What is the cost price in rupees?

Madhur scored 101 marks in Hindi, 100 in Science, 96 in Sanskrit, 108 in Maths and 78 in English if the maximum marks in each subject is equal and Madhur secured 84 percent marks in all the subjects. What will be the maximum marks for each subject?

A book seller sells a book at a profit of 10 %. If he had bought it at 4 % less and sold it for Rs. 6 more. he would have gained $$18{3\over4}\%$$. The cost price of the book is