A tap can fill a tank in 6 hours. After half the tank is filled , three more similar taps are opened . What is the total time taken to fill the tank completely?

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Job Solution Probashi Kallyan Bank এক্সিকিউটিভ অফিসার (সাধারণ) ১৮.১০.২০১৯ গণিত
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A short distance athlete has taken 60 seconds to cover 100 meters . If he makes 30 steps in 9 seconds , how many steps has he taken in that time?

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Three angles of a triangle are in proportion 5 : 6 : 7. Then what is the difference in degrees between the biggest and the smallest angles?

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