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Jordan · Grade 7 · Practice Sheet 31

Sheet code: JORDAN-G7-S31 · 20 questions

Name: ______________
Date: ______________
  1. 1.

    JD 150 is shared in the ratio 3 : 2. 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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  2. 2.

    A train moves at 39 km/h for 4.3 hours. How far does it travel?

    Formula:Distance from Speed & Time
    d=v×td = v \times t
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  3. 3.

    A value changes from 95 to 182. Find the percentage change (to 2 d.p.).

    Formula:Percentage Change
    % change=new−oldold×100\%\,\text{change} = \dfrac{\text{new} - \text{old}}{\text{old}} \times 100
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  4. 4.

    A right-angled triangle has legs of 11 cm and 12 cm. Find the length of the hypotenuse.

    Formula:Pythagorean Theorem
    c=a2+b2c = \sqrt{a^2 + b^2}
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  5. 5.

    A rectangle is 35 cm long and 27 cm wide. Find its area.

    Formula:Area of a Rectangle
    A=l×wA = l \times w
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  6. 6.

    Find the mean (average) of these numbers: 31, 57, 45, 77, 26.

    Formula:Arithmetic Mean
    xˉ=∑xn\bar{x} = \dfrac{\sum x}{n}
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  7. 7.

    Solve for x: 3x + 10 = 28.

    Formula:Solving a Linear Equation
    x=c−bax = \dfrac{c - b}{a}
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  8. 8.

    A value changes from 38 to 22. Find the percentage change (to 2 d.p.).

    Formula:Percentage Change
    % change=new−oldold×100\%\,\text{change} = \dfrac{\text{new} - \text{old}}{\text{old}} \times 100
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  9. 9.

    Find the circumference of a circle whose radius is 11 m. (Use π ≈ 3.14159)

    Formula:Circumference of a Circle
    C=2πrC = 2\pi r
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  10. 10.

    A rectangle is 31 cm long and 22 cm wide. Find its area.

    Formula:Area of a Rectangle
    A=l×wA = l \times w
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  11. 11.

    Find the mean (average) of these numbers: 92, 96, 35, 41.

    Formula:Arithmetic Mean
    xˉ=∑xn\bar{x} = \dfrac{\sum x}{n}
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  12. 12.

    Find the perimeter of a rectangle measuring 45 m by 22 m.

    Formula:Perimeter of a Rectangle
    P=2(l+w)P = 2(l + w)
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  13. 13.

    One item costs JD 22.34. Find the total cost of 12 items.

    Formula:Total Cost
    total=price×quantity\text{total} = \text{price} \times \text{quantity}
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  14. 14.

    A bag has 15 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)=favourabletotalP(E) = \dfrac{\text{favourable}}{\text{total}}
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  15. 15.

    JD 280 is shared in the ratio 5 : 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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  16. 16.

    A right-angled triangle has legs of 15 cm and 18 cm. Find the length of the hypotenuse.

    Formula:Pythagorean Theorem
    c=a2+b2c = \sqrt{a^2 + b^2}
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  17. 17.

    JD 4,300 is invested at 6% simple interest per year for 5 years. Find the interest earned.

    Formula:Simple Interest
    I=P×r×t100I = \dfrac{P \times r \times t}{100}
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  18. 18.

    A right-angled triangle has legs of 3 cm and 17 cm. Find the length of the hypotenuse.

    Formula:Pythagorean Theorem
    c=a2+b2c = \sqrt{a^2 + b^2}
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  19. 19.

    One item costs JD 20.97. Find the total cost of 3 items.

    Formula:Total Cost
    total=price×quantity\text{total} = \text{price} \times \text{quantity}
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  20. 20.

    JD 5,000 is invested at 10% simple interest per year for 4 years. Find the interest earned.

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