Maths practice for 12-year-olds - page 69 of 362
Number of problems found: 7225
- Joe had
Joe had a full tank of petrol in his car. His car consumed 2/9 of the tank of petrol on Saturday and 1/3 of it on Sunday. What fraction of the tank of petrol was left after the weekend? - Calculating 80571
During the race, the cyclists covered 3/7 of the total length and had 80.5 km to go. How long was the race, and what part of the race did they complete at 55 km? An example of calculating in fractions. - Janice
Janice said that when you multiply a fraction less than 1 by a nonzero whole number, the product is always less than the whole number. Do you agree? Explain. - Jolene
Jolene is cutting a strip of yarn that is 11/12 inch long pieces that are 2/12 inch long for a collage. How many complete pieces can she make? - My mother
My mother has 15 grams of gold. How many grams were not used if a pair of earrings need 1 1/4 grams of gold? - Positive integer integral How many different sets of a positive integer in the form (x, y, z) satisfy the equation xyz=1400?
- David 4
David made 4/3 of a quart of fruit juice. Each mug he has holds 1/3 of a quart. How many mugs will David be able to fill?
- A moving
A moving company charges $0.40 per pound. A family estimates that their belongings weigh about 3 tons. Approximately how much would it cost the family to move their belongings? - Electrical 80549
The factory hall is lit by 76 light bulbs, each of which has an input of 200W. Determine how much electrical work will be saved annually if the light is on an average of 100 minutes less per day. Consider 260 business days. - Determines 80548
Find the map's scale, on which a line segment of 15 cm expresses the actual distance of 435 km between Paris and Bern. - Segments 80547
AB segment = 14 cm, divide it into two segments whose lengths are in the ratio 4:3. - Regulations 80545
The car is allowed to drive on the highway at a maximum speed of 130 km/h. What distance can he travel in 1.5 hours? Which is the furthest city that a driver can reach in 1 hour if he follows traffic regulations and drives from Prague on the highway to Br - Bookshop
Ali went to a bookshop. He spent 3/5 of his money on books and 1/4 of it on a pen. What fraction of his money did he spend altogether? What fraction of his money did he have left? - Home is home At 65km/h, Alfred can reach home in 50 minutes. At what speed should he drive his car so that he can reach home 10 minutes earlier?
- Musa worked
Musa worked for 44 hours during one five days a week. His hours are from Monday through Thursday: 3 3/4, 6 7/12, 11 5/16, and 6 5/6. Calculate the number of hours he worked on Friday.
- Quotient of two fractions
If the quotient of 8/9 and 1/3 is subtracted from the product of 2 3/4 and 1 3/5, what is the difference? Write the solution as a mixed number or a fraction in the lowest terms. - For what
For what value of x is -5x+8=-6 a true statement? Write your answer as a decimal. - There 27
There are 24 colored cubes in a box. Three-quarters of the cubes are red, four of the cubes are blue, and the rest are green. How many green cubes are in the box? One more blue cube got put into the box. What fraction of the cubes in the box are blue? - Fire victim
Of the 600 3/4 kg of rice donated to the fire victim, 80 1/2 kg came from the learners, and 270 3/4 kg from the teachers. The rest came from the government council. How many kilograms came from the government council? - Shani
Shani mixed 1 1/3 cups peanuts, 1 3/4 cups raisins, and 1 1/2 cups chocolate chips to make a trail mix. How many cups of trail mix did she make? Responses
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