M can fill a tank in 60 minutes and n can fill a tank in 15 minutes they were turned on together after how many minutes should and be close to fill tank in 36 minutes
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Step-by-step explanation:
Let the total capacity of the tank be 96 units (LCM of 24 & 32).
A fills = 2496 = 4 units / minute.
B fills = 3296 = 3 units / minute.
Let the time for which B is opened is x minutes.
According to the question, 4 × 18 + 3 × x = 96
3x = 96 - 72 = ⇒ 3x = 24
x = 8 minutes.
The pipe B should be closed after 8 minutes.
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