In an examination the minimum passing marks for reserved and unreserved category is 40% and 54% respectively. A candidate of unreserved category got 300 marks and failed by 24 marks. What is the minimum passing markfor reserved category?

There are some boys and some girls in a room. The square of the number of girls is 28 less than the square of the number of boys. If there were two more girls then the number of boys and girls would have been same. What is the total number of boys and girls in the room?

The ratio of the cost price and selling price of an item is 10: 11, and then percentage profit will be

Delhi Municipal Corporation increases the price of water by 20%, while the consumption of water decreases by 20%. What is the final increase or decrease in the expenditure of a family?

Krishnamoorthy earns Rs 15000 per month and spends 80% of it. Due to revise in salary his monthly income has increased by 20% but due to price hike he has to spend 20% more. What is his new savings?

Hari and Ravi accepted to complete a work in Rs 375. Hari alone can complete that work in 20 hours and Ravi alone can complete that work in 30 hours. With the help of Shyam they complete the work in 8 hours then how much labour charge should they give to Shyam?

The sum of present ages of A and B is 7 times the difference of their ages. 5 years hence, their total ages will be 9 times the difference of their ages. What is the present age of elder one (in years)?

Rs. 2000 amounts to Rs 2600 in five years at a certain rate of simple interest. If the rate of interest is 3% more than the previous rate, then in the same time period, the same sum will amount to

A shopkeeper earns a profit of 14% on selling a cycle for Rs 2850. If the profit is kept as 8% then what will be the selling price?

Two places A and B are 100 km apart on a highway. One car starts from A and another from B at the same time. If the cars travel in the same direction at a constant speed, they meet in 5 hours. If the cars travel towards each other, they meet in one hour. What is the speed of the car running faster?