three gardeners take 90 minutes to build a garden if the job has to be done in only 15 minutes how many more gardeners need to be put on the job
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Answered by
1
Step-by-step explanation:
No. of gardeners. No. of minutu
3. 90
x. 15
By inverse variation,
x/3 = 90/15
= x = 18
Gardeners required to complete task in 15 minutes is 18
Answered by
0
Answer:15
Step-by-step explanation:3 person × 90min = Total work time = 270min
If this work has to be done in 15 min then
270÷15= 18 men required in total we have 3 person already so 15 additional persons required
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