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Please help me solve this.

Sherry can do a job in 60 min. If her sister helps her, it takes them 36 min. How long does it take her sister alone?

Respuesta :

Answer: 24 mins.

Step-by-step explanation: 60-36=24. It took both of them 36 minutes, and Sherry alone 60. If you subtract the two, you get her sisters time.

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