Question

Ted's dad was planning to fence the garden with plants. How many saplings should he buy so that his dad can fence the garden with 5 saplings every 2.5 meters?

• A. 31
• B. 41
• C. 62
• D. 82

Answer 1

The correct option is D

82

Number of saplings required for 2.5 m = 5

$\therefore$ Number of saplings required for 1m = $\frac{5}{2.5}$ = 2

Ted has to plant 2 saplings per meter.

Perimeter is the measure of the distance of the boundary of a planar object.

Perimeter of the garden = (10.2 + 11.4 + 10.6 + 8.8) m = 41 m

For 1 m, Ted needs 2 saplings.

$\therefore$ For 41 m, Ted needs 41$\times$2 = 82 saplings.