Math, asked by thulluri1113owublq, 1 year ago

Saleem can finish a job in 20 days and Rahim in 25 days. They start working together but after 5 days Rahim leaves. In how many more days will Saleem alone finish the job?

Answers

Answered by wifilethbridge
1

Answer:

11 days

Step-by-step explanation:

Saleem can do a part of work in 20 days = 1

Saleem can do a part of work in 1 day = \frac{1}{20}

Rahim can do a part of work in 25 days = 1

Rahim can do a part of work in 1 day = \frac{1}{25}

So, they can do a part of work together in 1 day = \frac{1}{25}+\frac{1}{20}

                                                                               = \frac{9}{100}

So, Together they can do work in 5 days = \frac{9}{100} \times 5

                                                                     = \frac{45}{100}

So, remaining part of work = 1-\frac{45}{100}=\frac{100-45}{100}=\frac{55}{100}

After 5 days  Rahim leaves.

So, we are supposed to find In how many more days will Saleem alone finish the job

Sallem can complete 1 work in days = 20

So, he can complete \frac{55}{100}work =20 \times \frac{55}{100}

                                                                                   =11

Hence Saleem will take 11 more days to complete the remaining work

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