Math, asked by saidheeraj417, 3 months ago

Two taps P and Q can fill a tank in 20 minutes and 30 minutes respectively. Both the taps are opened together but after 3 minutes tap Q is closed. How long will the tap P takes to fill the remaining portion of the tank?​


a. 12 mins
b. 10mins
c. 16mins
d. 15mins


explain why​

Answers

Answered by hemantkujoshi
2

Answer:

Answer is 15 min. In first 3 min it filled up 1/20*3=3/20 by p + 1/30*3=3/30=1/10 by q. sum is 3/20+1/10=5/20= 1/4. 3/4 of tank is empty after 3 min. P filled 1 tanks in 20 min. So it filled 3/4 tanks in 20*3/4=15 min.

Answered by sujatapinkyhota
0

Answer:

10 \: minutes

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