Question

if three gardeners can weed a garden in 1^1/2 hours how many gardeners are required to complete the same job in 15 minutes
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Answer 1

Answer:

18

Step-by-step explanation:

Number of gardener and time taken is inversely proportional since as the number increases, time decreases

There is a constant between both given by a inversely proprtional equation:

No. of gardeners = X / time taken

X is the constant. The constant when calculated in minutes comes out as 270,

3 x 90 = X = 270

now to find the number of gardeners who would complete the task in 15 minutes,

nu.of gardeners = X / time takes

We know that, X = 270 (from previous calculation) and t = 15 (from the question)

no. of gardeners = 270 / 15 = 18