Ques:- Pipes P and Q would fill a cistern 18 and 24 minutes respectively. Both pipes being opened, find when the first pipe must be turned off so that the cistern may be just filled in 12 minutes?
Recent Answer : Added by Shamruthi On 2021-10-02 15:45:25:
P’s one min work=1/18
Q’s one min work=1/24
P’s x min work+Q’s 12 min work = tank fully filled ( 1 )
x(1/18)+12(1/24)=1
x=9 min
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C. integer
D. prime
Recent Answer : Added by narendra On 2022-09-18 09:03:01:
A
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16.25
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64
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Recent Answer : Added by Énio Carlos On 2022-08-14 16:46:41:
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It consists of replacing a character by another located in (current character position + (key-1)), where key = how many positions you want to skip.
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Recent Answer : Added by bhawanisej On 2022-09-15 16:36:22:
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Recent Answer : Added by Lokanadham Ponapati On 2021-01-02 15:35:20:
Circular Track sis of 11 km
Speed of Mens are
4 , 5.5 , 8 km/hr
Time at Which they are at starting Points again
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P’s one min work=1/18
Q’s one min work=1/24
P’s x min work+Q’s 12 min work = tank fully filled ( 1 )
x(1/18)+12(1/24)=1
x=9 min