no need to multiply with three because ratio doesnt change (Question: 286810...

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amit kumar

· started a discussion

· 1 Months ago

no need to multiply with three because ratio doesnt change (Question: 286810.0 )

Question:

Three pipes A, B and C can fill a tank empty to full in 30 minutes, 20 minutes and 10 minutes respectively. When the tank is empty, all the three pipes are opened A, B and C discharge chemical solutions P, Q and R respectively. What is the proportion of solution R in the liquid in the tank after 3 minutes ?

Options:

$\frac{5}{11}$

$\frac{6}{11}$

$\frac{7}{11}$

$\frac{8}{11}$

Solution:

Ans: (b)

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no need to multiply with three because ratio doesnt change (Question: 286810.0 )

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