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JAMB 1990 · UME · Q23

The perimeter of a rectangular lawn is 24 m. If the area of the lawn is 35 m235\text{ m}^2, how wide is the lawn?

Worked solution (try it first)
  1. Half the perimeter is length + width: 24÷2=1224 \div 2 = 12 m.
  2. You need two numbers that add up to 12 and multiply to 35: they are 7 and 5.
  3. The width is the shorter side, 5 m, option A.

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