Grade - practice problems - page 9 of 953

Number of problems found: 19049

Four numbers 3
What is the smallest number that must be added to each of the numbers 6, 15, 20, and 43 to make them proportional?
The angle 9
The angle of elevation of the top of a tower from a point A on the ground is 30°. On moving 20 m closer to the foot of the tower to a point B, the angle of elevation increases to 60°. Find the height of the tower and the distance of the tower from point A
Surface = volume
If the volume and the surface area of a sphere are numerically equal, find its radius.
Triangle - same sides
Can the sides of a triangle have lengths of 11, 11, and 14? If so, what type of triangle is it?
GP - terms
Which term of the geometric progression 2, 8, 32, … is 131,072?
The radius 4
The radius of a sphere is r = 9 cm. What is the volume of this sphere? Use π ≈ 3.14 and round your answer to the nearest hundredth.
Blue region
Find the area of the blue region shown in the picture.
Pizza - sleepover
Patricia and Amber had 9 pizzas delivered for a sleepover. Patricia ate 2/3 of the pizzas. How many pizzas did Amber eat? Nothing was left.
Collecting money
Rs 180 is contained in a box in one-rupee, 50-paise, and 25-paise coins in the ratio 2:3:4. What is the number of 50-paise coins? (One rupee = 100 paise)
Parallelogram - simple
One side and its corresponding height of a parallelogram are 4 cm and 3 cm respectively. Find the area of the parallelogram.
A gardener
A gardener wants to fence a circular garden with a diameter of 21 m. Find the length of rope he needs to purchase if he makes 2 rounds of fence. Also find the cost of the rope if it costs $0.40 per metre.
Working group
20 men complete one third of a piece of work in 20 days. How many additional men should be employed to finish the rest of the work in 25 more days?
The tourist
A man travelled a distance of 61 km in 9 hours. He travelled partly on foot at 4 km/h and partly by bicycle at 9 km/h. Find the distance travelled on foot.
Britney
Britney made 12 1/4 bags of popcorn for a movie night with some friends. Together they ate 8 7/8 bags of it. How much popcorn was left? Write the result as a fraction or a mixed number.
4100 USD
$4,100 was distributed among 50 boys and girls. Each boy received $90 and each girl $65. Find the number of boys.
Triple the sum
At what annual simple interest rate does a sum triple in 5 years?
Triangle 90
A triangle has sides of 6 cm, 4.5 cm, and 7.5 cm. What are the sizes of its angles?
Apples 32
A woman sold half of her apples to the 1st customer, half of the remainder to the 2nd customer, half of what remained to the 3rd customer, and again half of the remainder to the 4th customer. She was then left with 15 apples. What was the total number of
765 chairs
765 chairs are to be arranged in rows such that the number of chairs in each row equals the number of rows. How many chairs need to be removed to complete this arrangement?
Somebody
Somebody spends 5% of his wages on school fees. That amounts to 800 shillings. How much does he earn?

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