Solve Quantitative Aptitude Problem - JSS2 Mathematics Lesson Note

Linear equations and inequalities can be used to solve real-world problems.

Example:

You want to save at least $200. You currently have $50 and plan to save $20 per week. How many weeks will it take?

Set up the inequality:

50+20𝑤≥200

Solve for 𝑤:

20𝑤≥150

𝑤≥7.5