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junaid and ashish can do a piece of work in 12 days, Ashish and ali in 15 days, Junaid and ali in 20 days.in how many days will they finish it together ? |
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Answer» Answer: ASHISH + ALI (ii) JUNAID + ALI (III) Step-by-step explanation: Use the concept of time and work. All necessary concepts I had EXPLAINED in picture. |
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