Time + percentages - practice problems
Number of problems found: 269
- A man 24
A man distributed 25300 EUR among his 3 sons A, B, C in such a way that the amounts of their parts at 10% simple interest in 2 years, 3 years, 4 years will be equal. A's share?
- Doubling - simple interest
A sum becomes its double in 10 years. Find the annual rate of simple interest
- Triple the sum
At what rate a sum triples in 5 years at simple interest?
- Two trains 16
Two trains cross each other in 14 seconds when they are moving in opposite direction and when they are moving in the same direction they cross each other in 3 minutes 2 seconds . The speed of the faster train is by what percent more than the slower train?
- Simple interest
At what time will the sum be doubled at 5% per annum at simple interest?
- Compound continuously
Find the balance in the account after 10 years. P= $1900; r= 6% Compound continuously.
- The value
The value of the property decreases every year at the rate of 5%. If its present value is 411540 USD, what was its value three years ago?
- Susan 4
Susan went to school for 219 days in a full year. If her attendance is 75%, find the number of days on which the school was open.
- A town 3
A town with 12,000 people has been growing at a rate of 2.5% per year. How many years ago was the population 8,000?
- A sum 6
A sum at simple interest of 4% per annum amounts to 3120 USD in 5 years. Find the sum.
- Full-tank
A full-tank of petrol a car lasts for 10 days. If driver starts using 25% more everyday, how many days will the full-tank petrol last?
- Three 268
Three taps A, B and C fill a tank in 20 min, 15 min and 12 min, respectively. If all the taps are opened simultaneously, how long will they take to fill 40% of the tank?
- Daily compounded
Zachary invested $130 in an account paying an interest rate of 3.6% compounded daily, Assuming no deposits or withdrawals are made, how much money, to the nearest dollar, would be in the account after 11 years?
- The cost 15
The cost of a machine depreciates every year by 10% of its cost at the beginning of the year. If the present cost of the machine is USD 10000, find its cost after 2 years.
- A period
A period of 4 hrs 30 min is what percent of a day?
- The population 4
The population of a city is decreasing at a rate of 2% per year. The population in 2002 was 700,000. What would be the population in 2009?
- Per annum
At a certain time, a sum becomes 4 times at the rate of 5% per annum. At what rate of simple interest the same sum becomes 8 times in the same duration
- Person A,B
Person A takes 3000 USD from person B for 2 yrs at the rate of 10% half yearly interest. What amount will be paid by person A to B after the end 2 yr?
- Tax info
The tax-free price of the jacket is €150 and the VAT rate is 24%. Calculate the VAT and Taxable price.
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