Grade - examples - page 120

  1. Clock Tower
    clock_3 What angle is betwenn hands on Clock Tower when show 17 hours and 35 minutes?
  2. Fe vs. H2O
    atoms_Fe The volume of what the body of the same weight is greater - iron or water?
  3. Shop stores
    shipping Workers untied fruit to stores. In the first quarter shipments, in the second fifth shipment, in the third two-fifths of the rest and in the fourth 231 kilograms. How many fruits were together?
  4. Annulus
    medzikruzie Calculate the area of two circles annulus k1 (S, 3 cm) and k2 (S, 5 cm).
  5. Average age
    age_4 The average age of all people at the celebration was equal to the number of people present. After the departure of one person who was 29 years old, average age was again equal to the number present. How many people were originally to celebrate?
  6. Unions now
    roh The plant has 1,250 employees. The Trade Unions (former ROH, OH) is 18% male, 23% female. Plant management reported that in the trade union is 20% of all employees. How many men and women are in plant and how many are men and women in trade unions?
  7. Triangle
    heron1 Determine whether a triangle can be formed with the given side lengths. If so, use Heron's formula to find the area of the triangle. a = 158 b = 185 c = 201
  8. Sparrow ball
    vrabce On the sparrows ball were males and females. There were 170 sparrows. Males was 20 more than females. How many sparrow female was at a ball?
  9. Radians compare
    28-trigonometry-02 What is greater angle? -0.7 radians or -0.7π radians?
  10. Angles
    fun1 Which of those angles are obtuse?
  11. Hexadecimal number
    digitrons What will be hexadecimal number 303 as decimal number?
  12. Bricks II
    cihly 3/4 bricks weighs 6 kg and 2/3 bricks. How weighs one whole brick?
  13. Freezer
    teplomer Temperature is -8 degrees Celsius in the freezer. Outside temperature is 2 degrees Celsius. One minute took to change temperature by one degree Celsius if we open door. How many minutes the temperature in the freezer will rise?
  14. The mast
    octagon A 40 m high mast is secured in half by eight ropes of 25 m long. The ends of the ropes are equidistant from each other. Calculate this distance.
  15. Triangle ABC v2
    triangles_4 Area of the triangle is 12 cm square. Angle ACB = 30º , AC = (x + 2) cm, BC = x cm. Calculate the value of x.
  16. No. 215
    215_num From the number 215 we can create a four-digit number that among its numbers manually type any other digit. Thus, we created two four-digit numbers whose difference is 120. What two four-digit numbers that might be?
  17. Time adding
    clocks2_9 Add and write the result again as hours, minutes, seconds: 2hodiny45min15s + 1h20m50s =
  18. Competition
    f1_australia_2010 The organizers of competion wanted to spent big amount of money to pay for the competitors. One third of this amount spent on prizes and the remaining € 5,000 to diplomas. How much was committed for rewards?
  19. Pigs
    prasce Pigs are feed by beet.Beet feed containing 12% dry solids, which is 0.72% of digestible crude protein. How much beet must beconsumed in one month (30 days), if the weight of digestible crude protein contained in a daily dose of beet was 0.912 kg?
  20. Apples 2
    jableka How many minimum apples are in the cart, if possible is completely divided into packages of 6, 14 and 21 apples?

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