Question

One fine morning, Ted woke up and found his dad gardening. His 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 plants every 2.5 metres?

• A. 31
• B. 41
• C. 62
• D. 82

Answer 1

The correct option is D

82

For 2.5 m, number of saplings required = 5

For 1 m, number of saplings required = $\frac{5}{2.5}$ = 2

Ted has to plant 2 plants per metre.

Perimeter of the garden = (10.2 + 11.4 + 10.6 + 8.8) m = 41.0 m = 41 m

For 1 m, Ted needs 2 plants.

So, for 41 m, Ted will need 41 $\times$ 2 = 82 saplings.