Question
Two pipes M and N can fill a tank in 14 hours and 21
hours respectively. The pipes were opened together, but pipe N stopped working after sometime and the rest of the tank was filled by pipe M in 4 hours. After how many hours did pipe N stop working?Solution
let pipe N stop working after x hours x/21 + (x+4)/14 = 1 x = 6 hours
- If the sum of two numbers is cubed and equals 3375, and their product is 150, what is the positive difference between their individual cubes?
मेरी बहन मुझसे 352 दिन बड़ी है जबकि मेरा भाई उससे 65 सप्ताह बड़ा ...
Study the following information carefully to answer the given questions below-:
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Conclusion:
I. R ≤ U
II. R > V
III. J ≥ S
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