Ratio - practice for 12 year olds - page 3 of 28
Number of problems found: 558
- String
Divide the string length 800 cm in ratio 1: 5 - Ratio of perimeters
Rectangle ABCD has dimensions 3 cm and 4 cm, KLMN rectangle has dimensions 4 cm and 12 cm. Calculate the ratio of the perimeter ABCD and perimeter KLMN. - Tree trunk
Calculate the average tree trunk with a circumference of 192 cm. - Triangle angles
The angles α, β, γ in triangle ABC are in the ratio 6:2:6. Calculate the size of angles. - The ratio
The ratio of the lengths of the two circles is 5:2. Find the ratio of a a) the radii of these circles b) the areas for these circles - Age ratio
Janko is 14 years old. The age ratio of Janka and Zuzka is 2:3. What was the ratio seven years ago? - Ratio of sides 2
The ratio of the side lengths of one square to another is 1:2. Find the ratio of the area of the two squares. - Andre
Andre, Thomas, and Ivan split 88 postage stamps in a 2:5:4 ratio. How much did Thomas get? - Ratios
Divide: a) 250 CZK in the ratio of 2:3 b) 1000 CZK in the ratio 4:7:9 - Number ratio
Calculate two positive numbers. Its ratio is 6:6, and difference was 0. - Proportion 81593
Express the ratio. There are 12 boys and 16 girls in the class. a) In what ratio is the number of girls to the number of boys? b) In what proportion is the number of boys to the total number of pupils? - An orchard
An orchard has 28 apple trees, 27 orange trees, and 14 cherry trees. What is the ratio of apple trees to cherry trees? - Malzenice 32021
The area of Malzenice and Trakovic is in the ratio 3:4. The area of Ratkovec and Malzenice is in the ratio 1:4. In what ratio are the areas of Ratkovec, Malzenic, and Trakovic? - Naturally 6121
The ratio of the two natural numbers is 2:3. The smaller natural number from this pair is 12. Calculate the larger. - Approximately 2696
The diameter of the Earth and the diameter of Mars are approximately 15: 8, and the diameter of Mars and the diameter of the Moon are 2: 1. What is the ratio of the diameters of the Earth, Mars, and the Moon? - Temporary 1637
Three temporary workers will clean 60 meters of the sidewalk in 5 hours. How many meters of sidewalk will clean by seven temporary workers in 8 hours? - Difference 1628
If I add the ratio, the product, the difference, and the sum of the unknown number and the number 2, I get the number 72. What is this unknown number? - Two girls
Two girls share two crates of eggs(one crate =30 eggs) in a ratio of 1:2. How many eggs will each get, respectively? - Three in ratio
1/8 of the balls in a bag are red, 5/8 are blue, and the rest is green. Find the ratio of red to blue to green balls. - Mary solved
Mary solved six out of ten problems correctly in mathematics. What is the ratio of the number of correct answers to the number of wrong answers? Show the solution.
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