A Boy and girl together fill a cis-
tern with water. The boy pours
4 litres of water every 3 min.
utes and the girl pours 3 litres every 4 minutes. How much
time will it take to fill 100 litres
of water in the cistern?
Answers
Answered by
5
Answer:
4x+3y=100
x=100-3y/4
putting value
time taken is 25 min.
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