Ratio - practice for 12 year olds - page 17 of 29
Number of problems found: 562
- Received 5995
Jeníček, Karel, and Martin shared the money from the brigade in a ratio of 2:4:3. Karel received the most, namely 12.60 euros. How much did Jeníček and Martin get together? - Five pumps
The water tank is filled with two pumps in 48 minutes. How long would it take to fill it with five same pumps? - Olda wanted
Oldrich wanted to enlarge the 9 cm x 13 cm photo so that the shorter side measured 18 cm. How big will the longer side of the photo be? - Twelve
Twelve students work on a week forestry brigade. One hundred spruces will receive x CZK, one hundred pine y CZK. How many receive each student in one day if they planted a total of 25,000 spruces per week and 30,000 pine trees? Express by expression.
- Babysitting
The amount Susan charges per hour for babysitting is directly proportional to the number of children she watches. She charges $4.50 for three kids. How much would she charge for babysitting five kids? - Equation 5900
Adam, Cyril, and Boris have a total of 102 CZK. How many crowns does Adam have, how many Boris and how many Cyril, if all three have the same when: a) Adam gives three crowns to Cyril b) Boris will give half of his money to Cyril c) Adam will give a third - Convert 5889
Convert the ratio to the basic form: 3.5:70 - Change 5882
Change the number 132 in the ratio of 7:3. - Divide 5881
Divide the number 600 by the ratio of 9:10:11
- Anywhere 5880
The bus runs 6 km in 9 minutes. How many minutes will the bus go to a place 42 km away if it doesn't stop along the way? - Scale of the map
The distance between the two cities is actually 30 km, and the map is 6 cm. What is the scale of the map? - Separated 5878
How many cm on a map with a scale of 1:150,000 will two cities be separated when their distance is 30 km? - Measures 5876
How many km does the trip's route actually measure, which measures 28 cm on a map with a scale of 1: 75,000? - Proportion 5811
In what proportion do we need to increase the length of the picture frame if its original length is 55 cm and 30 cm larger?
- Performances 5782
A group of three girls won a € 30 science competition. Kamila, Magda, and Zuzka divided the win according to their performances in the ratio of 3:4:5. How many euros have each of them? - Distance 5773
The air distance from the hotel to the castle is 4.4 km. What is the map's scale on which this distance is shown by a line 4 cm long? - Garden
The rectangular garden has dimensions of 27 m and 30 m. Peter and Katka split it in a ratio of 4:5. How many square meters did Katkin measure part of the garden? - Pamela
Lara Pamela spends her salary of 3000 on food, clothing, recreation, and savings, which are in the ratio of 48:20:15:37, respectively. How much does he spend on savings? - Identical 5362
120 hl of water flows out of the tank through 4 pipes in 16 hours. How much water flows through 5 identical pipes in 14 hours?
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