Maths practice for 12-year-olds - page 219 of 351
Number of problems found: 7020
- Direction 7554
A freight train departs from one station at an average speed of 36 km/h. 2 hours later, personal pressure leaves in the same direction at an average speed of 48 km/h. After how many hours will the passenger train catch up with the freight train? - Noontime
In the morning temperature was 110°F. By noontime, it has gone up by 15°F. What was the noon temperature? (Give your answer in °F) - Recipe
A recipe requires 2 pounds of flour. If a chef wants to triple the recipe, how many ounces of flour will be needed? - Consecutive 7551
Determine the sum of three consecutive natural numbers such that the sum of the first and third numbers is 368. - Consecutive 7550 The sum of four consecutive integers, five greater than the previous one, is 2. Find these numbers.
- Renata 7549
Erika has 126 euros. Renata has only a third of Erika and Hanka, 12 euros less than Renata. Hanka then has? - Difference 7548 The difference between every two adjacent numbers equals three in a series of four numbers. The sum of these numbers is 60. Specify these numbers.
- Feet to miles
A student runs 2640 feet. If the student runs an additional 7920 feet, how many total miles does the student run? - Measures 7543
The garden has an area of 1378 m2, and a side measures 53m. How much does side b measure? - Cutting paper
Divide a rectangular paper with dimensions 220mm and 308mm into squares of the same size so that they are as large as possible. Specify the length of the side of the square. - Hectolitres and liters
What part of a hectolitre is 12 liters? Write the answer as a fraction and decimal. - Consumption 7538
A package of one cheese weighs 1.80 kg. From the previous day, 0.80 kg remained. Today I have 0.53 left in the box. What was the consumption of cheese? - Two-thirds 7531
On a trip to London, Julie spent one-third of the pounds on the first day, two-thirds of the rest on the second day, and 14 pounds on the last day. How many pounds did Julia have on the trip? - Lollipops 7530
On Friday morning, we opened another box of lollipops, and by lunch, we sold a third of them at 4 crowns each. After lunch, we sold the rest of the box and raised the price to CZK 5 per piece. If there are 90 lollipops in the whole box, how much did we sp - Greater 7529
Which number is three greater than a quarter? - Centimeters 7526
The gardener used 18 poles with a base of 15.15 cm and a height of 150 centimeters to fence the plot. Calculate how much paint he will need to paint the columns twice. One kilogram of paint covers eight square meters. - She encoded
Aunt Heda likes puzzles, but her memory is no longer working for her. She chose the 4-digit code on her mobile phone as follows: She encoded her name according to the order of the letters in the alphabet (A=1 B2 C3 D4 E5 F6 G7 H8 I9 ) inserted one multipl - A cylindrical tank A cylindrical tank can hold 44 cubic meters of water. If the radius of the tank is 3.5 meters, how high is the tank?
- Allan
Allan keeps tropical fish. His aquarium is 4 feet long, 1 foot wide, and 2 feet tall. Each fish needs at least 0.5ft³ of water. What is the maximum number of fish he can keep in the aquarium? Please show your solution. Please - Rectangle 45
The perimeter of a rectangle is 60cm if the length of the rectangle is 20cm. a)find the width b)find the area.
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