Equations practice problems - page 4 of 227
Number of problems found: 4538
- 5 years
5 years ago the age of a father was thrice the age of his son. In 5 years time, the age of the father will be twice the age of his son at that time. Find their present ages. - Money exchange
A told B, "If you give me 1/3 of your money I'll be 50 USD". In turn B told A, " If you give me 9 USD then we'll be the same amount of money". Find their money. - Solve 29
Solve for x. 8=2x+4 - The sum 50
The sum of five consecutive integers is 385. Which one of these five integers is prime?
- Work in factory
45 men can complete a work in 16 days, but after some days they started working 30 more men joined them and completed the remaining work in 6 days. How many days after the commencement of the job did 30 men join? - Palidrom A number consists of two digits whose product is 24. When 18 is subtracted from the number, the digits change their places. Find the number.
- Reciprocals - sum
The sum of the two numbers is 15. If the sum of their reciprocals is 5/18, find the numbers. - Clock error
How much does a watch lose per day, if its hands coincide every 64 minutes? - A shopkeeper 7
A shopkeeper bought 80 cricket bats for 2.55 euros each. He sells 20 of them at a 5% gain. What must be the gain percentage of the remaining bats to get a 10% gain overall?
- An article
An article is sold at 20% profit. If it were sold at a 25% profit, then he could get USD 35 more. Then, find the article's cost price. - Twice a number If 73 is one more than twice a number, what is 50% of the number?
- Twins 2 The average age of a man and his two twin sons is 30 years. The ratio of the ages of father and one son is 5 : 2, what is the father's age?
- At present At present, Ram is eight years younger than Susan, and Hari is two years younger. If the respective ratio between the present age of Ram and that of Hari is 3: 4, then what is Hari's present age?
- Sum of squares
If the first number is 80% of the second number and 4 times the sum of their squares is 656, find the numbers.
- 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? - Square lawn
A square lawn has a 2 m wide path surrounding it. If the area of the path is 136 square meters, find the area of the lawn. - System of equations
Solve the following system of equations: 2x-5y=4 5x-3y=4 - Adam reaches
If Adam walks at 3 km/h, he will reach school 15 minutes late. If he walks at 4 km/h (kmph), he will reach school 15 minutes earlier than usual. What is the distance between school and house? - Usual speed
If the usual speed is reduced by 5 km per hour, a train takes 2 hours more to cover a distance of 300 km. Find the usual speed.
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