Two pipes A and C can fill a tank in 10 hours and 15 hours respectively. If A is open all the time and C is open for 30 minutes, then find the time needed for the tank to be filled.

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Two pipes A and C can fill a tank in 10 hours and 15 hours respectively. If A is open all the time and C is open for 30 minutes, then find the time needed for the tank to be filled.

A$$9\frac13$ hours$

B$$8\frac43$ hours$

C$$9\frac23$ hours$

D$$8\frac23$ hours$

Answer:

$$9\frac23$ hours$

Read Explanation:

$9\frac23$ hours

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