An algebra problem by Mahmod Abass

Algebra Level pending

if we have empty tank, it's filled by 1st tap in 45 mins and by 2nd tap in 1 hour if we worked both taps for 15 minutes then left the first tap alone for 5 minutes and then we worked the other tap alone for another 5 minute how much the tank is filled?

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Mahmod Abass by Mahmod Abass , 28, Egypt

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1 solution

Md Omur Faruque
Sep 29, 2015

Both tap worked for 20 20 minutes. So, in the given condition the taps will fill 20 45 \frac{20}{45} & 20 60 \frac{20}{60} of the tank respectively, filling a total of:

20 45 + 20 60 = 7 9 \frac{20}{45}+\frac{20}{60}=\color{#0C6AC7} {\boxed{\frac79}}

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