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Algeria · Grade 8 · Practice Sheet 36

Sheet code: ALGERIA-G8-S36 · 20 questions

Name: ______________

Date: ______________

1.
A triangle has a base of 24 cm and a height of 8 cm. Find its area.
Formula:Area of a Triangle
$A = \tfrac{1}{2} b h$
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2.
A train moves at 74 km/h for 5.1 hours. How far does it travel?
Formula:Distance from Speed & Time
$d = v \times t$
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3.
A bag has 12 equally likely marbles, of which 6 are red. Find the probability of drawing a red marble (to 3 d.p.).
Formula:Simple Probability
$P(E) = \dfrac{\text{favourable}}{\text{total}}$
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4.
A circle has a radius of 22 cm. Find its area. (Use π ≈ 3.14159)
Formula:Area of a Circle
$A = \pi r^2$
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5.
A triangle has a base of 24 cm and a height of 5 cm. Find its area.
Formula:Area of a Triangle
$A = \tfrac{1}{2} b h$
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6.
A car travels 320 km in 4 hours. Find its average speed.
Formula:Speed
$v = \dfrac{d}{t}$
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7.
A cylinder has radius 6 cm and height 8 cm. Find its volume. (π ≈ 3.14159)
Formula:Volume of a Cylinder
$V = \pi r^2 h$
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8.
DA 1,000 is invested at 10% simple interest per year for 4 years. Find the interest earned.
Formula:Simple Interest
$I = \dfrac{P \times r \times t}{100}$
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9.
Find the mean (average) of these numbers: 65, 40, 37, 95, 15, 18.
Formula:Arithmetic Mean
$\bar{x} = \dfrac{\sum x}{n}$
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10.
DA 3,100 is invested at 3% simple interest per year for 3 years. Find the interest earned.
Formula:Simple Interest
$I = \dfrac{P \times r \times t}{100}$
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11.
A force of 333 N acts on an area of 9.9 m². Find the pressure.
Formula:Pressure
$P = \dfrac{F}{A}$
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12.
A current of 1.4 A flows through a 20 Ω resistor. Find the voltage across it.
Formula:Ohm's Law
$V = I R$
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13.
DA 170 is shared in the ratio 1 : 4. Find each share.
Formula:Dividing in a Ratio
$\text{share} = \dfrac{\text{part}}{\text{total parts}} \times T$
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14.
A cylinder has radius 5 cm and height 24 cm. Find its volume. (π ≈ 3.14159)
Formula:Volume of a Cylinder
$V = \pi r^2 h$
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15.
A car travels 200 km in 4 hours. Find its average speed.
Formula:Speed
$v = \dfrac{d}{t}$
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16.
A bag has 24 equally likely marbles, of which 13 are red. Find the probability of drawing a red marble (to 3 d.p.).
Formula:Simple Probability
$P(E) = \dfrac{\text{favourable}}{\text{total}}$
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17.
A car travels 68 km in 2 hours. Find its average speed.
Formula:Speed
$v = \dfrac{d}{t}$
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18.
A value changes from 156 to 148. Find the percentage change (to 2 d.p.).
Formula:Percentage Change
$\%\,\text{change} = \dfrac{\text{new} - \text{old}}{\text{old}} \times 100$
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19.
A train moves at 72 km/h for 3.5 hours. How far does it travel?
Formula:Distance from Speed & Time
$d = v \times t$
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20.
A cylinder has radius 2 cm and height 8 cm. Find its volume. (π ≈ 3.14159)
Formula:Volume of a Cylinder
$V = \pi r^2 h$
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