In an examination, a student who secured 25% of the maximum marks fails by 60 marks but another candidate who secures 45% of the maximum marks gets 10 marks more than required passing marks. The maximum number of marks is

In a tour, I spent every day as many ten rupee (notes) as the number of days I had been away from the home. My total expenditure was Rs. 18,300. How long did I stay away from the home?

Before 3 years, the average age of a five- member family was 17 years. A baby having been born and the average of family is now 17 years. The present age of the baby is

A publisher sells books to retailer at marked price which is 20% above his outlay. If on cash payment, he allows a discount of 10% on the marked price. The publisher thus gains

The average age of A, B and C is 25 years. The ratio of their ages is 3 : 5 : 7. Find the age of A

A certain sum of money was deposited in a bank and it became two-fold in 10 years. What is the rate of simple interest?

If Rs. 80 amounts to Rs. 140 in 4 years, what will Rs. 96 amount to in 10 years at the same rate of interest per annum?

A group of workers accepted to do a piece of work in 25 days. If 6 of them did not turn up for the work and the remaining workers did the work in 40 days, then the original number of workers was

Two taps ‘A’ and ‘B’ can fill a water reservoir in 8 and 6 hours respectively. A third tap ‘C’ can empty the tank completely in 24 hours. How long would it take to fill the empty tank when all the taps are open?