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Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
35%
(medium)
Question Stats:
76% (02:24) correct
24%
(03:15)
wrong
based on 74
sessions
History
Date
Time
Result
Not Attempted Yet
To clean the water tank each tap in a house was kept open for some time. There were 2 taps in the houses numbered I and II with different draining capacities. Initially tap I was opened alone and could empty 2/3 of the tank in 5 hours. After that both the taps were opened together and the remaining tank could empty taking 2 more hours. How much time will the tap II alone take to empty the full tank?
(A) 8 hours
(B) 10 hours
(C) 15 hours
(D) 20 hours
(E) 30 hours
Gentle note to all experts and tutors: Please refrain from replying to this question until the Official Answer (OA) is revealed. Let students attempt to solve it first. You are all welcome to contribute posts after the OA is posted. Thank you all for your cooperation!
(A) 8 hours
(B) 10 hours
(C) 15 hours
(D) 20 hours
(E) 30 hours
Gentle note to all experts and tutors: Please refrain from replying to this question until the Official Answer (OA) is revealed. Let students attempt to solve it first. You are all welcome to contribute posts after the OA is posted. Thank you all for your cooperation!
28 May 2025, 02:30
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Let rate of tap I be x and rate of tap II be y
W=RT
2/3 = x*5
x=2/15
Together they did 1/3 of the work
1/3 = (2/15+y) *2
y = 1/6-2/15 = 1/30
Time taken by tap II alone to empty the full tank is 30hrs
W=RT
2/3 = x*5
x=2/15
Together they did 1/3 of the work
1/3 = (2/15+y) *2
y = 1/6-2/15 = 1/30
Time taken by tap II alone to empty the full tank is 30hrs
Bunuel
To clean the water tank each tap in a house was kept open for some time. There were 2 taps in the houses numbered I and II with different draining capacities. Initially tap I was opened alone and could empty 2/3 of the tank in 5 hours. After that both the taps were opened together and the remaining tank could empty taking 2 more hours. How much time will the tap II alone take to empty the full tank?
(A) 8 hours
(B) 10 hours
(C) 15 hours
(D) 20 hours
(E) 30 hours
Gentle note to all experts and tutors: Please refrain from replying to this question until the Official Answer (OA) is revealed. Let students attempt to solve it first. You are all welcome to contribute posts after the OA is posted. Thank you all for your cooperation!
(A) 8 hours
(B) 10 hours
(C) 15 hours
(D) 20 hours
(E) 30 hours
Gentle note to all experts and tutors: Please refrain from replying to this question until the Official Answer (OA) is revealed. Let students attempt to solve it first. You are all welcome to contribute posts after the OA is posted. Thank you all for your cooperation!
