Problem PageQuestion There are dishes that need to be rinsed. Reuben can rinse them in minutes by himself. It will take his friend Tony minutes to rinse these dishes. How long will it take them if they rinse these dishes together?

it will take a fewer minutes less than both the minutes Reuben and Tony will use.

Explanation:

If Reuben can do 630 dishes in 105 minutes. Therefore he would wash 630/105 dishes in 1 minute.

And if Tony can do 630 dishes in 70 minutes. Therefore, he would wash 630/70 dishes in 1 minute.

That means that if they wash the dishes together, every minute would mean that they would be able to wash (630/105)+(630/70)=15 dishes in 1 minute.

Since there are 630 dishes to be washed, they would take together 

630/15=42 minutes

well since twins have about the same dna they dont have one think in common which is the figer print. nobodys fingerprint is the same. if your using twin you would most likely get around the same results for both of them because of the genetics.. i hope this

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