# Grade - examples - page 165

1. Car parking
The car park has 80 cars when 53 cars leaves. How many car are there?
2. Circle chord
Calculate the length of the chord of the circle with radius r = 10 cm, length of which is equal to the distance from the center of the circle.
3. Garden
The garden grows 312 roses and 389 tulips. Which flowers are more? How many?
4. Storm
So far, a storm has traveled 35 miles in 1/2 hour in direction straight to observer. If it is currently 5:00 p. m. and the storm is 105 miles away from you, at what time will the storm reach you? Explain how you solved the problem.
5. On the tree
15 squids and sparrows sat on the tree. Sparrows were 8 less than squids. How many sparrows were sitting at the tree?
6. Bakery and flour
The bakery tray for flour was filled to 3/4 volume. After removing 875 kg of flour, it was filled to only 2/5 of the volume. How many tons of flour is in the full tray?
7. Book
Jitka read on holidays book that has 180 pages. In the first week read 45 pages. In the second week she read 15 pages more than the first week. How many pages left to read it yet?
8. Obtuse angle
Which obtuse angle is creating clocks at 17:00?
9. The rope
A 68 centimetre long rope is used to make a rhombus on the ground. The distance between a pair of opposite side corners is 16 centimetres what is the distance between the other two corners?
10. Classroom
There are eighty more girls in the class than boys. Boys are 40 percent and girls are 60 percent. How many are boys and how many girls?
11. Series and sequences
Find a fraction equivalent to the recurring decimal? 0.435643564356
12. Third member
Determine the third member of the AP if a4=93, d=7.5.
13. Alley
Alley measured a meters. At the beginning and end are planted poplar. How many we must plant poplars to get the distance between the poplars 15 meters?
14. Parabola 3
Find the equation of a parabola with its focus at (0,2) and its vertex at the origin. ?
15. Mother and daughter
The mother is four times older than her daughter. Five years ago, her daughter was seven times younger than her mother. How many years do they have now?
16. Trees
A young tree is 16 inches tall. One year later, it is 20 inches tall. What is the percent increase in height?
17. Money split
Anton and Ferko got 2,500 euros together. The amount was split in 1:4 ratio. How much did each get?
18. Folded square
ABCD is a square. The square is folded on the midpoint of AB and A is folded onto the fold, creating a shaded region. The perimiter of the shaded figure is 75. Find the area of square ABCD
19. Thermometer
thermometer showed -12 degrees Celsius at the morning then the temperature rises by 4 degrees and later again increased by 2 degrees at the evening has fallen by 5 degrees and then fall 3 degrees. What end temperature does the thermometer show?
20. Equation
Solve the equation: 1/2-2/8 = 1/10; Write the result as a decimal number.

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