Ratio - practice for 11 year olds - page 6 of 11
Number of problems found: 206
- Two squares
Two squares with sides in the ratio 5:2 have a sum of their perimeters 73 cm. Calculate the sum of the area of these two squares. - Describes 82518
The minute hand describes an angle of 180 degrees in half an hour. In how many minutes does the minute hand cover an angle of 192 degrees? - 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? - 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? - Demonstrate 4841
The textile factory employs 600 women and men, twice as many women as men. How many women and how many men work here? Demonstrate and explain the calculation procedure. - Represents 3509
What is the map's scale if the 2.5 cm long line represents 500 km? - Individual 3233
One gardener has 8 apple trees and 2 pears in his set. The other gardener has 12 apple trees and 3 pears in his set. a/ which gardener has more apple trees per pear? b/ what is the ratio of apple and pear trees in individual orchards? - Determine 2510
Anna, Peter, Rado, Mišo, and Tomáš shared the amount of 250 euros in the ratio 1:1:1:1:1. Find how much each of them received. - 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? - Two machines
Performances of two machines are in a ratio of 7:12. A machine with less power produced 406 pieces of products per shift. a) How many pieces are produced per shift second machine? b) How many pieces produced two machines together for five shifts? - Small city
The length of the street is 230 m. What will its image length be on the plan at a scale of 1:2500? - Division of money
Calculate how many euros Matthew, Miriam, Lucy, Michael, and Janka, when together, have 2,700 euros, and the amounts are at a ratio of 1:5:6:7:8. - Statuette 83001
The bronze figurine weighs 0.5 kg. Bronze is an alloy of tin and copper in a ratio of 1:4. How many grams of copper and how many grams of tin does the statuette contain? - Following 31401
The two natural numbers are in the ratio of 3:13, and we will denote their sum. Which of the following values cannot its sum be? a) 64 b) 96 c) 112 d) 39 - Seedlings 6051
A forest nursery needs an area of 1.25 square meters per pine seedling. How many pine seedlings are planted in an area of 9 acres? - Distance 2877
On a map with a scale of 1:50,000, we measured the distance of places AB = 136 mm. The actual distance between cities A and B is: - Giraffes to monkeys
The ratio of the number of giraffes to the number of monkeys in a zoo is 2 to 5. Which statement about the giraffes and monkeys could be true? A. For every 10 monkeys in the zoo, there are 4 giraffes. B. For every giraffe in the zoo, there are three monke - Cows
Twenty cows have food for 60 days. We reduce the dose to two-thirds for 18 cows. How many days will it feed? - Troops - soldiers
Food stocks will last 20 soldiers of the 4-day training. How many days could they extend training if four soldiers become sick? - Smaller 81015
Divide the content of the garden in the shape of a square S=153m² in a ratio of 2:7. What part of the garden does the smaller part occupy?
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