Problems for 6th grade (the sixth graders) - page 32

  1. Car consumption
    odometer The car has passed 988 kilometers and consumed 66 liters of petrol. What is the consumption per 100 kilometers?
  2. Paper collecting
    sber At the paper collecting contest gathered Franta 2/9 ton, Karel 1/4 ton and Patrick 19/36 tons of paper. Who have gathered the most and the least (x, y - write down the weights in tonnes).
  3. Aunt
    teta Annie aunt is 35 years old, Annie is 14 years. For how many years will aunt have twice as many years as Annie?
  4. Peppers
    paprika In the box are yellow (a), green (b) and red (c) peppers. Their amount is in a ratio 2:4:1 . Most are yellow peppers and green the least. Calculate the number of peppers each type if the total number of peppers is 70.
  5. Cakes
    cookies_2 Grandmother baked cakes. Half of its was poppy, quarter with plum jam and 16 cheesecakes. How many cakes she baked in total?
  6. Princess
    princezna Princess has lost 321 beads and Prince George are all trying to find. On the first day he found all but 83 beads. On the second day he found 68 beads. On the third day he found the rest, but the princess had lost 76. How many beads had Princess after the f
  7. Gears
    ozub_kola The gearing fits wheel with 20 teeth to the wheel with 36 teeth. Before starting the machine is stained tooth smaller wheels in the designated space between the teeth of the larger wheels. How many times after starting the machine wheels turning that stain
  8. Buildings
    prg The school stands 110 m from the church, which is 100 m beyond the town hall. Which building are closer to the church and how many times?
  9. Perimeter from area
    stvorec_6 What is the perimeter of the square if its content is 64 cm2?
  10. Blades
    ruler2_1 1st blade 2,5 m, 2nd blade. .1.75 m. How many same long pieces of this two blades can be do the biggest? How long is one piece?
  11. 3x square
    square_3 Side length of the square is 54 cm. How many times increases the content area of square if the length of side increase three times?
  12. Divide money
    zlomky Divide 1200 USD at a ratio of 1:2:3:4:5:6:9:10
  13. The tap
    kohutik For one day flows 148 l of water out of the tap. How much water will flow out for 3/4 day?
  14. Pumps 5
    pump_1 5 pump pumped in 3 hours 1800 hl of water. How many hectoliters of water pumped 4 equally powerful pumps in 6 hours?
  15. Cube 2
    krychle_1 How many times will increase if the surface area of the cube if we triple length of its edge?
  16. Football team
    trenyrky Football team has in store black, purple and orange shirts, blue and white shorts and striped and gray socks. How many different outfits players may start?
  17. Circle from string
    motuz Martin has a long 628 mm string . He makes circle from it. Calculate the radius of the circle.
  18. Decide
    mo_1 The rectangle is divided into seven fields. On each box is to write just one of the numbers 1, 2 and 3. Mirek argue that it can be done so that the sum of the two numbers written next to each other was always different. Zuzana (Susan) instead argue that.
  19. Roses and tulips
    flowers_3 At the florist are 50 tulips and 5 times less roses. How many flowers are in flower shop?
  20. Charles Bridge
    k_most Charles Bridge was 15 times older than Frantův bridge from 1900 in 1931. How old is the Charles Bridge?

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