1 big tap can fill the tank in 20 min
1 small tap can empty the tank in 40 min
if two taps are open how much time will to empty
I want with steps. plz
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Answer:
Quantity of water filled by the first tap in one minute =
30
1
Quantity of water filled by the second tap in one minute =
40
1
Quantity of water emptied by the third tap in one minute =
24
1
Quantity of water filled in one minute, when all the 3 taps are opened =
30
1
+
40
1
−
24
1
=
120
4+3−5
=
120
7−5
=
120
2
=
60
1
Time taken to fill the tank =
60
1
1
=60 minutes
=1 hour
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