Ratio - practice for 11 year olds - page 6 of 11
Number of problems found: 209
- A map
A map of size 60cm by 25cm is reduced in the ratio of 3:5 twice. What are the new dimensions? - Hammerhead 5061
The hammerhead weighs 1 kg and the handle 250 g. What is the weight ratio of these two parts of the hammer? - Display case
Place a glass shelf at the height of 1m from the bottom of the display case in the cabinet. How long platter will we place at this height? The display case is a rectangular triangle with 2 m and 2.5 m legs. - Length 4992
The length of the part is 230 meters. What will its image length be on the plan at a scale of 1:2500?
- Magic belt
The magic rectangular belt has the property that whenever its owner wants something, the length of the belt is reduced to 1/2 and the width to 1/3. After three such wishes, the belt had an area of 4 cm². What was its original length if the original width - Photo egative
Negative dimensions are 36mm and 28mm. What will the photo size be in the 21:4 ratio? - Photo enlarge
Mark wants to enlarge a 4-inch by 6-inch photo to have a height of 15inches. Use a ratio table to determine the new width of the photo. - 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. - Ounce
749 calories in a 7 - ounce serving. What is the unit rate?
- School 6
Jirka lives 600m from the school, Honzík 1200m. How many kilometers a week does Honzik go over Jirka on his way to school and back? How many times will more Honzík go than Jirka? - Rectangular 4780
The plan of the television studio is made on a scale of 1:150. The plan has a rectangular studio measuring 5 cm and 6 cm. How many crowns will we pay to cover the studio with a floating floor if we pay 356 crowns for 1 m² of floating floor? - Map scale
What is the map's scale if 5.4 km is 72 mm on the map? - Rewarded 4678
Peter and Adam were rewarded with 300 CZK for cleaning the yard. They awarded the reward in a 3: 2 ratio. How many CZK did each get? - Dimensions 4560
The picture frame is made of a 6 cm wide bar. The dimensions of the image are 74 and 57 cm. Are the inner and outer edges of the frame two similar baffles?
- Cube
One cube has an edge increased five times. How many times will larger its surface area and volume? - 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? - Bicycle gears
The toothed wheel on the bicycle pedal has 40 teeth, and the wheel on the rear wheel has only 16 teeth. How many times does the rear wheel turn if the pedals rotate 50 times? - Numbers 3965
Change the numbers 34, 21, and 5.5 in a ratio of 5:2. - Rails
18 m railway weighs 1260 kg. How much weighs 100 m of welded railways?
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