#### Topic Content:

- Word Problems Leading to Linear Inequalities

Problems involving inequalities are handled similarly to linear equations except for the sign that must definitely change.

### Example 5.3.1:

Ade bought x biros at ₦8 each and (x + 4) rulers at ₦20 each. He spent less than ₦200. Form an inequality for the statement and solve it.

**Solution: **

The biros cost ₦8x

The rulers cost ₦20(x + 4) or ₦(20x + 80)

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