Shaina pays Rs.7500 as rent for 3 months.How much does she have to pay for a whole year,if the rent per month remains same?

Anita takes a loan of Rs.5,000 at 15% per year as rate of interest. Find the interest she has to pay at the end of one year.

Rani had Rs 18.50.She bought one ice-cream for Rs.11.75 .How much money does she have now?

A family pays 1000 for electricity on an average in those months in which it does not use a water heater. In the months in which it uses a water heater, the average electricity bill is 1240. The cost of using the water heater is ? 8.00 per hour. Find the average number of hours the water heater is used in a day.

A family pays ? 1000 for electricity on an average in those months in which it does not use a water heater. In the months in which it uses a water heater, the average electricity bill is ? 1240. The cost of using the water heater is ? 8.00 per hour. Find the average number of hours the water heater is used in a day.

From the pair of linear equations in the foIlowing problems and find their solution by substitution method: The taxi charges in a City consist of a fixed charge together with the charge for the distance covered. For a distance of 10 km, the charge paid is Rs. 105 and for a journey of 15 km, the charge paid is Rs 155. What are the fixed charges and the charge per km? How much does a person have to pay for travelling a distance of 25km?

Nazima is fly fishing in a stream. The tip of her fishing rod is 1.8 m above the surface of the water and the fly at the end of the string rests on the water 3.6 m away and 2.4 m from a point directly under the tip of the rod. Assuming that her string (from the tip of her rod to the fly) is taut, how much string does she have out ? If she pulls in the string at the rate of 5 cm per second, what will the horizontal distance of the fly from her after 12 seconds ? .

Fabina borrows Rs 12,500 at 12% per annum for 3 years at simple interest and Radha borrows the same amount for the same time period at 10% per annum, compounded annually. Who pays more interest and by how much?