Application of fractional equation in junior high school Party A and Party B type a manuscript together. After 4 hours, Party A has another task, and Party B will type another 6 hours to complete the task? Notice the fractional equation!

Application of fractional equation in junior high school Party A and Party B type a manuscript together. After 4 hours, Party A has another task, and Party B will type another 6 hours to complete the task? Notice the fractional equation!

Suppose it takes x hours for a to play alone and Y hours for B to play alone
4/X=5/Y
The equations are as follows
4/X+10/Y=1
The solution is: x = 12, y = 15
So it takes 15 hours for B to finish it alone!

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