# Grade - examples - page 217

1. Tallest and shortest
Jenn is the tallest on the team. He is 1 1/2 times as tall as the shortest girl whom is 4 1/4 feet tall. How tall is Jebb?
2. Journey 5
A man has to do a journey of 84km in 3 hours. He travels the first 30km at 20km/hr. At what rate must he travel the remaining distance to complete his journey on time?
Montealegre family has a catering business. In one birthday party, they charged their costumer 11,767.50 for a party of 90 persons and a service charge of 2,500.50. How much was the average cost per person? Please show your solution.
4. Erica
Erica bought 3 1/2 yards of fabric. If she uses 2/3 of the fabric, how much will she have left?
5. Geometric plan
At what scale the building plan if one side of the building is 45m long and 12mm long on a plan?
6. Profit growth
The profit of a company increased by 25% during the year 1992, increased by 40% during the year 1993, decreased by 20% in the year 1994 and increased by 10% during the year 1995. Find the average growth in the profit level over the four years periods?
7. 5 people
5 people have \$122000 and 1 person has \$539000 How much should each person (equally) pay?
8. Length subtracting
Express in mm: 5 3/10 cm - 2/5 mm
9. Arble bag
A marble bag sold by Rachel's Marble Company contains 5 orange marbles for every 6 green marbles. If a bag has 35 orange marbles, how many green marbles does it contain?
10. Babysitting
The amount that Susan charges per hour for babysitting are directly proportional to the number of children she is watching. She charges \$4.50 for 3 kids. How much would she charge to babysit 5 kids?
11. Reservoir 3
How many cubic feet of water is stored in the reservoir that has a length of 200 feet, a width of 100 feet, an overflow depth of 32 feet, and a current water level of 24 feet?
12. Written number
Place+values x ten thousands =30 thousands
13. Delayed clock
Michael put a new battery into his watch at midnight. However, they are 5 seconds late each minute. How many hours does the watch show in 24 hours?
14. Value 4
If 5/18=425 what is the value 13/18?
15. Two numbers 6
Fill two natural numbers a, b: 7 + blank- blank = 5
16. Rectangular field
A rectangular field has a diagonal of length 169m. If the length and width are in the ratio 12:5. Find the dimensions of the field, the perimeter of the field and the area of the field.
17. Pages counting
There are pages numbered from 2 to 104 in the book. How many digits have to be printed to number the pages?
18. Comparing and sorting
Arrange in descending order this fractions: 2/7, 7/10 & 1/2
19. Loan 5
Abdul takes a loan of 200000 from Ali and agrees to repay in number of instalment, each instalment begin with the 2nd exceeding the previous one by 1000, if the first instalment is 500, find how many instalment will be necessary to be wipe out the loan? C
20. Pile of sand
A large pile of sand has been dumped into a conical pile in a warehouse. The slant height of the pile is 20 feet. The diameter of the base of the sand pile is 31 feet. Find the volume of the pile of sand.

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