A train running at the speed of 72 kmph crosses a 260 metre long platform in 23 seconds. What is the length of the train in metres?
In a class of 52 students the number of boys is two less than the number of girls. Average weight of the boys is 42 kg, while the average weight of all the 52 students is 40 kg. Approximately what is the average weight of the girls?
The present population of a city is 18000. If it increases at the rate of 10% per annum, its population after 2years will be
A man bought an old typewriter for Rs. 1200 and spent Rs. 200 on its repairs. He sold it for Rs. 1680. His profit per cent is
The difference between a two digit number and the number obtained by interchanging the positions of its digits is 36. What is the difference between the two digits of that number?
The area of a rectangular field is 460 square metres. If the length is 15% more than the breadth, what is the breadth of rectangular field?
Deepa bought a calculator with 30% discount on the listed price. Had she not got the discount, she would have paid Rs. 82.50 extra. At what price did she buy the calculator?
A motor car starts with the speed of 70 kmph with its increasing every 2 hours by 10 kmph. In how many hours will it cover 345 km?
A certain amount earns simple interest of Rs. 1750 after 7 years. Had the interest been 2% more, how much more interest would it have earned?
The price of 2 sarees and 4 shirts is Rs. 1600. With the same money one can buy 1 saree and 6 shirts. If one wants to buy 12 shirts, how much shall he have to pay?
20 buckets of water fill a tank when the capacity of each bucket is 13.5 litres. How many buckets will be required to fill the same tank if the capacity of each bucket is 9 litres?
Two pipes are connected to a water tank. The first pipe can fill the tank in 10 minutes and the second pipe can empty it in 15 minutes. If both pipes opened simultaneously, then find the time in which the tank will be completely filled with water.
A train covers a distance of 193 1/3km in 4 1/4hours with one stoppage of 10 minutes, two of 5 minutes and one of 3 minutes one the way. Find the average speed of the train.
Tax on a commodity is decreased by 10% and thereby its consumption increases by 8%. Find the increase or decrease percent in the revenue obtained from the commodity.
Average weight of 8 students is increased by 1 kg. When a student whoes weight 60 kg is replaced by a new student, find the weight of the new student.
Selling price of 9 articles is equal to the cost price of 15 articles. Find the gain or loss percent in the transaction.
A fort is provisioned for 32 days for some soldiers. After 4 days, a reinforcement of 150 soldiers arrived and the food will now last for 21 days only. How many soldiers were there in the fort in the beginning?
The loss incurred on selling an article for Rs. 270 is as much as the profit made after selling it at 10% profit. What is the cost price of the article?
If the length of a rectangle is 5 cm more than its breadth and its area is 24 sq. cm, what will be its perimeter?
Suresh can complete a job in 15 hours. Ashutosh alone can complete the same job in 10 hours. If Suresh works alone for 9 hours and then stops, how many hours will it take Ashutosh to complete the job alone?
A shopkeeper employed a servant at the monthly salary of Rs. 1500 in addition to it he agreed to pay him a commission of 15% on the monthly sale. How much sale in Rupees, the servant should do if he wants his monthly income Rs. 6000?
Two perpendicular cross roads of equal width run through the middle of a rectangular field of length 80 m and breadth 60 m. If the area of the cross roads is 675 m², find the width of the roads.
The ratio of the volumes of a right circular cylinder and a sphere is 3:2, if the radius of the sphere is double the radius of the base of the cylinder, find the ratio of the surface areas of the cylinder and the sphere.
Three cubes of iron whose edges are 6 cm, 8 cm, and 10 cm are melted and formed into a single cube. The edge of the new cube formed is
A man spends 75% of his income. His income is increased by 20% and he increased his expenditure by 10%. His savings are increased by
വൃത്താകൃതിയിലുള്ള പാതയുടെ പുറംഭാഗത്തിന്റെയും അകംഭാഗത്തിന്റെയും ചുറ്റളവിന്റെ അനുപാതം 23 : 22 ആണ്. പാതയ്ക്ക് 5 മീറ്റർ വീതിയുണ്ടെങ്കിൽ, അകത്തെ വൃത്തത്തിന്റെ വ്യാസം ?
9 കുട്ടികൾക്ക് 360 ദിവസം കൊണ്ട് ഒരു ജോലി പൂർത്തിയാക്കാൻ കഴിയും. 18 പുരുഷന്മാർക്ക് ഇതേ ജോലി 72 ദിവസം കൊണ്ടും 12 സ്ത്രീകൾക്ക് 162 ദിവസം കൊണ്ടും പൂർത്തിയാക്കാനാകും. 4 പുരുഷന്മാരും 12 സ്ത്രീകളും 10 കുട്ടികളും ചേർന്ന് എത്ര ദിവസം കൊണ്ട് ഈ ജോലി പൂർത്തിയാക്കാൻ കഴിയും?
The salary of Manoj is first increased by 10% and then decreased by 10% then the total change occured is:
If the population of a town is 62500 and increase of 10% per year. Then after two years the population will be:
The population of a town is 10000 and there is an increase of 10%, 5% and 10% annually. Then population after three years will be:
A student has to score 30% marks to get through. If he gets 30 marks and fails by 30 marks Then find the maximum marks for the examination.