GCSE Maths Practice: forming-equations

Question 1 of 10

This question tests forming equations from 3D shapes. Knowing how to calculate volume of a cuboid is essential.

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\( \begin{array}{l}\text{A cuboid has height 5 cm, length } x+2 \text{ cm and width } x \text{ cm.} \\ \text{Its volume is 160 cm}^3. \text{Which equation represents this?}\end{array} \)

Choose one option:

\( x(x + 2)(5) = 160 \) \( 5x + 2x = 160 \) \( (x + 2)^2 = 160 \) \( 5(x^2 + 2) = 160 \)

Identify length, width, height first. Multiply and equate to volume.

Volume formula: V = length × width × height. Substitute known values to form equation.