View solutions
FormulaWon

Bahrain · Grade 8 · Practice Sheet 1

Sheet code: BAHRAIN-G8-S01 · 20 questions

Name: ______________
Date: ______________
  1. 1.

    What is 75% of 90?

    Formula:Percentage of a Quantity
    result=p100×N\text{result} = \dfrac{p}{100} \times N
    View formula →
  2. 2.

    A right-angled triangle has legs of 7 cm and 6 cm. Find the length of the hypotenuse.

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

    Find the mean (average) of these numbers: 57, 37, 12, 84.

    Formula:Arithmetic Mean
    xˉ=∑xn\bar{x} = \dfrac{\sum x}{n}
    View formula →
  4. 4.

    A bag has 24 equally likely marbles, of which 5 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}}
    View formula →
  5. 5.

    A cylinder has radius 14 cm and height 10 cm. Find its volume. (π ≈ 3.14159)

    Formula:Volume of a Cylinder
    V=πr2hV = \pi r^2 h
    View formula →
  6. 6.

    Solve for x: 2x + 15 = 29.

    Formula:Solving a Linear Equation
    x=c−bax = \dfrac{c - b}{a}
    View formula →
  7. 7.

    BD 140 is shared in the ratio 3 : 1. Find each share.

    Formula:Dividing in a Ratio
    share=parttotal parts×T\text{share} = \dfrac{\text{part}}{\text{total parts}} \times T
    View formula →
  8. 8.

    A value changes from 131 to 113. 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
    View formula →
  9. 9.

    Find the circumference of a circle whose radius is 20 m. (Use π ≈ 3.14159)

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

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

    Formula:Pythagorean Theorem
    c=a2+b2c = \sqrt{a^2 + b^2}
    View formula →
  11. 11.

    A cylinder has radius 5 cm and height 22 cm. Find its volume. (π ≈ 3.14159)

    Formula:Volume of a Cylinder
    V=πr2hV = \pi r^2 h
    View formula →
  12. 12.

    BD 900 is invested at 6% 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}
    View formula →
  13. 13.

    Find the circumference of a circle whose radius is 29 m. (Use π ≈ 3.14159)

    Formula:Circumference of a Circle
    C=2πrC = 2\pi r
    View formula →
  14. 14.

    An object has mass 71.5 g and volume 11 cm³. Find its density.

    Formula:Density
    ρ=mV\rho = \dfrac{m}{V}
    View formula →
  15. 15.

    BD 2,400 is invested at 3% 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}
    View formula →
  16. 16.

    Find the mean (average) of these numbers: 64, 23, 69, 35, 25.

    Formula:Arithmetic Mean
    xˉ=∑xn\bar{x} = \dfrac{\sum x}{n}
    View formula →
  17. 17.

    What is 25% of 580?

    Formula:Percentage of a Quantity
    result=p100×N\text{result} = \dfrac{p}{100} \times N
    View formula →
  18. 18.

    A cylinder has radius 2 cm and height 17 cm. Find its volume. (π ≈ 3.14159)

    Formula:Volume of a Cylinder
    V=πr2hV = \pi r^2 h
    View formula →
  19. 19.

    Solve for x: 2x + 14 = 36.

    Formula:Solving a Linear Equation
    x=c−bax = \dfrac{c - b}{a}
    View formula →
  20. 20.

    A force of 263 N acts on an area of 6 m². Find the pressure.

    Formula:Pressure
    P=FAP = \dfrac{F}{A}
    View formula →

© FormulaWon — formulawon.app · Answers & step-by-step working available on the solutions sheet.

Go to full solutions for this sheet