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Praveen Kumar Yadav

Ssc & Railways
Quantitative Aptitude
2 years ago

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Sundaram Singh

2 years ago

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Satyendra Dwivedi

2 years ago

2(1/x+1/y+1/z) = 1/30 + 1/40 + 1/60 = 9/120 (1/x+1/y+1/z). = 9/240 No of days = 240/9 = 26 is to 6/9

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