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$X$ bullocks and $Y$ tractors take $8$ days to plough a field. If we have the number of bullocks and double the number of tractors, it takes $5$ days to plough the same field. How many days will it take $X$ bullocks alone to plough the field?

1. $30$
2. $35$
3. $40$
4. $45$

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## 1 Answer

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10W=(W-5)×12 so this equation is solved answer is 30
by (140 points) 2
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