10 persons can fill up a water tank in 20 hours. How many persons are needed to
fill it up in 5 hours ?
Rakesh hought in
-
Answers
Answered by
2
Step-by-step explanation:
20 = 10
1 =20×10
5=20×10/5=40
Answered by
11
Answer:
☟︎︎︎
We can use the concept of Ration here as Persons Time (Hours)
10 20
x 5
There will be an inverse proportion between the two as time decreases persons will increase so we can write the equation as:
x/10=20/5
x=(20/5)*10
x=40
So 40 persons are required to fill up the tank in 5 hours.
➪ 40 .
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