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Qatar · Grade 7 · Practice Sheet 8

Sheet code: QATAR-G7-S08 · 20 questions

Name: ______________
Date: ______________
  1. 1.

    A car travels 88 km in 2 hours. Find its average speed.

    Formula:Speed
    v=dtv = \dfrac{d}{t}
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  2. 2.

    A right-angled triangle has legs of 14 cm and 6 cm. Find the length of the hypotenuse.

    Formula:Pythagorean Theorem
    c=a2+b2c = \sqrt{a^2 + b^2}
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  3. 3.

    QAR 1,000 is invested at 3% simple interest per year for 3 years. Find the interest earned.

    Formula:Simple Interest
    I=P×r×t100I = \dfrac{P \times r \times t}{100}
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  4. 4.

    A car travels 576 km in 8 hours. Find its average speed.

    Formula:Speed
    v=dtv = \dfrac{d}{t}
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  5. 5.

    QAR 2,200 is invested at 5% simple interest per year for 6 years. Find the interest earned.

    Formula:Simple Interest
    I=P×r×t100I = \dfrac{P \times r \times t}{100}
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  6. 6.

    Convert 2.96 kilometres into metres.

    Formula:Metric Length Conversion
    1 km=1000 m1\,\text{km} = 1000\,\text{m}
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  7. 7.

    A right-angled triangle has legs of 5 cm and 6 cm. Find the length of the hypotenuse.

    Formula:Pythagorean Theorem
    c=a2+b2c = \sqrt{a^2 + b^2}
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  8. 8.

    Find the circumference of a circle whose radius is 15 m. (Use π ≈ 3.14159)

    Formula:Circumference of a Circle
    C=2πrC = 2\pi r
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  9. 9.

    Find the mean (average) of these numbers: 16, 59, 67, 20, 49.

    Formula:Arithmetic Mean
    xˉ=∑xn\bar{x} = \dfrac{\sum x}{n}
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  10. 10.

    A train moves at 92 km/h for 3.7 hours. How far does it travel?

    Formula:Distance from Speed & Time
    d=v×td = v \times t
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  11. 11.

    One item costs QAR 8.16. Find the total cost of 7 items.

    Formula:Total Cost
    total=price×quantity\text{total} = \text{price} \times \text{quantity}
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  12. 12.

    Find the circumference of a circle whose radius is 9 m. (Use π ≈ 3.14159)

    Formula:Circumference of a Circle
    C=2πrC = 2\pi r
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  13. 13.

    Find the mean (average) of these numbers: 24, 16, 14, 54.

    Formula:Arithmetic Mean
    xˉ=∑xn\bar{x} = \dfrac{\sum x}{n}
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  14. 14.

    Find 2/8 of 72.

    Formula:Fraction of a Quantity
    result=ab×N\text{result} = \dfrac{a}{b} \times N
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  15. 15.

    QAR 2,700 is invested at 10% simple interest per year for 2 years. Find the interest earned.

    Formula:Simple Interest
    I=P×r×t100I = \dfrac{P \times r \times t}{100}
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  16. 16.

    A train moves at 79 km/h for 1.9 hours. How far does it travel?

    Formula:Distance from Speed & Time
    d=v×td = v \times t
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  17. 17.

    Solve for x: 3x + 10 = 16.

    Formula:Solving a Linear Equation
    x=c−bax = \dfrac{c - b}{a}
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  18. 18.

    QAR 180 is shared in the ratio 2 : 3. Find each share.

    Formula:Dividing in a Ratio
    share=parttotal parts×T\text{share} = \dfrac{\text{part}}{\text{total parts}} \times T
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  19. 19.

    Find the perimeter of a rectangle measuring 35 m by 9 m.

    Formula:Perimeter of a Rectangle
    P=2(l+w)P = 2(l + w)
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  20. 20.

    Find the circumference of a circle whose radius is 10 m. (Use π ≈ 3.14159)

    Formula:Circumference of a Circle
    C=2πrC = 2\pi r
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