kippasweets17
contestada

Trent can deliver his newspapers in 20 minutes. it takes lois 60 minutes to do the same route. how would it take them to deliver the newspapers together?

Respuesta :

Blacklash

Answer:

It takes 15 minutes for them to deliver the newspapers together

Step-by-step explanation:

Let x be the job of delivering news paper.

Rate of Trent [tex]=\frac{x}{20}[/tex]

Rate of Lois [tex]=\frac{x}{60}[/tex]

If they work together time required

          [tex]t=\frac{x}{\frac{x}{20}+\frac{x}{60}}=\frac{20\times 60}{20+60}=\frac{1200}{80}=\frac{120}{8}=15\texttt{ minutes}[/tex]

It takes 15 minutes for them to deliver the newspapers together

adioabiola

The time taken for both of them to deliver the newspaper together is; 15 minutes.

Rates and Frequency

According to the question;

  • Their individual rates of delivering x newspapers in 20 minutes are; x/20 and x/60

  • Hence, their combined rate is; x/20 + x/60

Combined rate = 4x/60

Hence, the time taken for both of them. to deliver the x newspapers together is;

  • t = x ÷ 4x/60

  • t = 60/4 = 15 minutes

Read more on rates;

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