Maths practice for 14 year olds - page 105 of 379
Number of problems found: 7575
- Base and longest side
The base of a right-angled triangle is 10 centimeters, and the longest side is 26 centimeters. What is the area of the triangle? - Brother age
One brother talks about his younger brother: "2 years ago, I was three times my brother's age. In 3 years, I will be twice as old as my brother." How old is each brother now? - Theater 60503
We will pay 445 euros for 50 tickets. How many cinema and theater tickets will we pay if one cinema ticket costs 4 euros and a theater ticket 11 euros? - Change and percentages
What is the percent of change from 35 to 62? - Calculate ΔRST
In a right triangle RST with a right angle at the vertex T, we know the lengths of two sides: s = 7.8 cm and t = 13 cm; calculate the third side r. - The speed
A moving object's speed (v) is inversely proportional to the time (t) traveled and is written as? - Corresponding 60311
The drink was mixed from one hundred percent juice and water in a ratio of 1.5 liters of juice to 2.5 liters of water. Calculate how many liters of this drink will be created by mixing 1 liter of water and juice in the corresponding ratio. Calculate how m
- Harvesters
Five combine harvesters harvest wheat in 12 days. How much will the harvest time be shortened when six combine harvesters enter the field? - One-third 60291
In the classroom, 50% of students come from other districts. One-third of them commute by bus, a fifth by bike, and seven pupils walk. How many students are in the class? - Pupils
Three hundred fifty pupils attend the school, of which 210 are girls. What percentage of boys attend school? - Three-month 60231
How much € do we have to save on a three-month term deposit with an interest rate of 2.5% pa? If we want the deposit to earn an interest of € 1,100 - Deposit in the bank
After the summer job, you saved € 800 in the bank. The interest rate is 4% p. a. Interest on the deposit is taxed at 15% withholding tax. How much can you withdraw after three months? - Bronze
Bronze is 80% copper and 20% tin. If we have 39 kg of tin, how much copper will we need to produce bronze? - The sum
The sum of the two numbers is 69, and the difference is 11. Which numbers are they? - Percentage 60143
Igor paid only 12 euros for sneakers instead of 15 euros. What percentage did he pay less? What percentage of the original amount of sneakers became cheaper?
- Jointly and cube power
If y varies jointly as x and the cube of z and y=16 when x=4 and z=2, find an equation representing this relationship. a. y=xz b. y = 2xz³ c.y = 2kx/z³ d.y = xz³/2 - Three men
If three men can do a job in 8 days, how many men can do the same job in 6 days? - Three dices
What is the probability that the sum of points 14 will be a roll of three dice (B, M, Z)? - Cheaper 60033
Iced tea in a bottle costs 1.20 euros. A bottle is seven times cheaper than tea. How many euros does a bottle cost, and how much tea? - Slant height 2
A regular triangular pyramid with a slant height of 9 m has a volume of 50 m³. Find the lateral area of the pyramid.
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