ek vyapari ke pas 100 tin tel h.ydi vo 8Rs.ke hisab se prati liter tel bechta h to use 600 Rs ki hani hoti h or jb 9Rs prati liter ke hisab se bechta h to use 900 Rs ka labh ho jata h to btao ki ek tin me kitna liter tel h or ek liter ki utpadan lagt kitni h?
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1 tin me 15 liter tel h.yadi
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