Maths practice for 14 year olds - page 57 of 376
Number of problems found: 7507
- Jane ring money
Jane lacked 160 crowns to buy six rings, so she only bought four and had 100 crowns left. How much are 4 rings? - Cottage bridge distance
Two neighboring cottagers have cottages under the forest by the stream. They decided to build a bridge over the stream at a place far from the two huts. The distance between the cottages is 230 m; one cottage is 120 m from the stream, and the other is 85 - KiloJoules energy
In the washing machine, 6 liters of water were heated from a temperature of 22 degrees to 62 degrees. Find out the weight of 6 liters of water. What heat (in kJ= kiloJoules) did the water receive? - Department age groups
The department has 90 members. There are 4 more older adults in the section than younger adults. There are 10 more older pupils than all adults. How many older and younger teenagers and how many older pupils are there in the section? - Athletics
160 students (gymnasiums and technical schools) participated in the athletics race. The proportion of girls from the gymnasium was 50%, the proportion of girls from the technical schools was 10%. Determine how many students were from the gymnasiums and ho - Jude section children Three times more boys than girls go to the Jude section. If three more girls started dating, there would be twice as many boys as girls. A) determine how many go to the girls' section B) determine how many children attend the department in total.
- The soap
The soap has the shape of a cuboid with dimensions of 6 cm, 4 cm, and 2 cm. Katy used it for a week and all the dimensions of the soap shrunk by half. How long will her soap last? - Theater ticket viewers
Although the price of a theater ticket rose by 20 percent, sales rose by only 8 percent. By what percentage did the number of viewers have to drop? - Classroom plan width The classroom is 6.8 m wide. Determine its width on a 1:50 scale plan.
- Plan scale determination
Determine the scale of the plan if the actual length of 51m is shown on the plan by a segment of length 3cm. - Rectangular garden
The garden is 24m long and 15m wide. Determine the ratio of the dimensions of this rectangle. - Circle arc angle
Points A and B lie on the circle k. The circumference of the circle k is 40 CM, and the length of the circular arc AB is 10 CM. Determine the size of the angle ABS. - Loan yield percentage
You lent €400. The borrower paid you €440 back in 5 months. What was the yield on this loan? - Rectangle dimensions 2
The length of the rectangle is 5 cm greater than its width. Determine the rectangle's dimensions if you know that its perimeter is 22 cm. - Deposit interest growth How much will the deposit grow at an interest rate of 10% p.d. a. for 72 days by €6?
- Car wash help
Four guys would finish washing cars at a gas station in 4 hours. After one hour, two more friends come to help them. How long will it take to finish the car wash? - Petr card piles
Petr divided the 32 playing cards into two piles. He found that one had three times as many cards as the other. How many cards were in each pile? - Diameter of a drum
Winding drum length 180mm, initial diameter 60mm. Using a 6mm rope with a length of 50m, what will be the diameter of the wound drum with the rope? - Triangle angle area
Calculate the size of the largest angle in triangle ABC if a = 7 cm, b = 8 cm, and c = 13 cm. Calculate the area of the triangle, the height per side a. - Pupils - class There are 28 pupils in the class. The ratio of boys to girls is 3:5. Find the number of girls.
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