Maths practice for 14 year olds - page 225 of 375

Number of problems found: 7492

Working together
One worker performs work in 3 days, the second in 5 days. How much do they work together?
Three unknowns
Solve the system of linear equations with three unknowns: A + B + C = 14 B - A - C = 4 2A - B + C = 0
Pooja
Pooja and Deepa's age is 4:5, and four years ago, it was 8:11. What is Pooja's age now?
Find sales tax
What is 8.25% sales tax out of 1607.00?
Chocolates
How many ways can we distribute eight different chocolates to four children?
Mother Children Shopping Puzzle
Mom sent half of her children and half a child shopping. Only one of her children remained at home. How many children does my mother have?
Total Distance Traveled
They walked 5 km through the forest, 3/4 around the lake, and 25% in the shade. How many km have they traveled in total?
Hexagon in circle
Calculate the radius of a circle whose length is 10 cm greater than the circumference of a regular hexagon inscribed in this circle.
Combinations 7
A multi-course meal has three choices. Three appetizers, four main courses, and three desserts. How many different combinations to choose from?
Children weight puzzle
Max and Katy weigh 75 kg together, Katy and Tina weigh 71 kilograms, and Max and Tina weigh 80 kilograms. Thus, each of the children weighs 75 kilograms.
Renovation Work Time
The first company would renovate the complex in 30 hours. Another company would fix it in 20 hours. But the first company left after 5 hours of joint work. How long will it take to renovate the site?
Two Workshops Production Days
Two workshops of a particular company produced 25 parts a day. To have 300 pieces, one worked for ten days and the other for 15 days. How many parts did each workshop make per day?
Water reservoir
One drain hole emptied the water from the tank for 20 hours, with the second drain for 30 hours. How long will the water drain from this tank if we open two drains simultaneously?
Darts Score Combinations
Adam was practicing for a darts competition in class. Every day at home, he threw darts at a target in which the individual fields were worth 1,3 and 5 points. He threw 9 darts every day and always scored 27 points. He is in good form and never missed a t
Three-digit numbers
Use the number 4,5,8,9 to write all three-digit numbers without repetition. How many such numbers are there?
Beds
At the summer camp, there are 41 chalets. Some rooms are 3 beds, some 4-beds. How many campers from 140 are living in 3-bed?
Uncle Nephew Age Puzzle
Uncle Josef is three times as old as Michal. Twelve years ago, Josef was nine times older than Michal. How old are they now?
Tea Left in Kindergarten
The children in the kindergarten drank 20% of the prepared tea in the morning. They drank another 10% of the left tea afternoon. After the whole day, there were still 9 liters of tea left. How many liters of tea was prepared in the kindergarten in the mor
Brother sister age
The brother and sister will be a total of 73 years old. At present, a sister is one-tenths older than her brother. How old are they now?
Rice flour cost
Marta bought 10 kg of rice and 25 kg of flour for 40 euros. A kilogram of flour and a kilogram of rice together cost 1.80 euros. How much does 1 kg of each type of goods cost?

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