if A and B tap fills a tank in 25 minutes. if the B tap is opened for the last 10 minutes then the tank is filled in 30 minutes so

if A and B tap fills a tank in 25 minutes. if the B tap is opened for the last 10 minutes then the tank is filled in 30 minutes so A tap will fill the tank in how many minutes? ​

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  1. Answer:

    Tap A takes 60 mins to fill the tank. So A fills (1/60)th of the tank in 1 minute.

    Tap B takes 25 mins to fill the tank. So A fills (1/25)th of the tank in 1 minute.

    Tap C takes 15 mins to fill the tank. So A fills (1/15)th of the tank in 1 minute.

    The LCM of 60, 25 and 15 is found as

    15 = 3×5

    25 = 5×5

    60 = 2x2x3x5

    LCM is 2x2x3x5x5 = 300.

    So A, B and C, all three together fill (1/60) + (1/25)+(1/15) or (5/300)+(12/300)+(20/300) = 37/300 th of the tank in 1 minute.

    So the three taps, A, B and C will fill the tank in 300/37 = 8.108108108 min.

    Step-by-step explanation:

    mark as brain list pls

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