Question

Wilde Oscar worked frantically for 4 hours and called for help because he saw it would take 6 more hours to finish. Calm Sally began to help and they finished the job in 2 more hours. How long would it have taken Sally to do the job alone?

Please show me how to get the answer.

Answer 1

Well, there are a lot of assumptions going to be made, but...assuming that he does 1 hours worth of work every hour, we may begin to approach this.

Answer 2

So, we assume that it takes him 1 hour to do 1 hours work of the job. Now, he knows he needs 6 more hours, because of this 1 to 1 pace.

Answer 3

Are you with me so far?

Answer 4

yes

Answer 5

Okay, please tell me to stop if i get too far ahead.

Answer 6

So, there is 6 hours of work to be done. He calls Sally and they complete 6 hours of work in 2 hours.

Answer 7

So for every hour he does 1 hours work, and for Sally, for every hour, we don't know how much hours work she does.

Answer 8

So Sally's hours work and his hours work must equal 6 hours of work, with a given amount of time of 2 hours.

Answer 9

Still with me? This is the only way I "know" how to do this question.

Answer 10

yes I'm with you

Answer 11

So, the dude + sally = 6
2 + 2x = 6
2x = 4
x = 2

Answer 12

With me still?

Answer 13

yes

Answer 14

So, in 1 hour, she does 2 hours work of the job. Now back to the question: if there was 6 hours work of a job to be done, how many hours would it personally take her?

Answer 15

5?

Answer 16

I don't blame you, this question is slightly retarded. In 3 hours she does 6 hours of work. y=2x......6=2x......3=x. So 3 hours. At least that is what i think.

Answer 17

thank you!!!!