Showing posts with label Speaker. Show all posts
Showing posts with label Speaker. Show all posts

How many women were in the group and how much was the speaker paid?

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Question by maddie: How many women were in the group and how much was the speaker paid?
A group of women decided to contribute equal amounts toward obtaining a speaker for a book review. If there were 10 more women, each would have paid 2 dollars less. However if there were 5 less women, each would have paid 2 dollars more. How many women were there and how much was the speaker paid?


Best answer:

Answer by bdwolfhound
Let there be n women paying $ q each.........

Total paid = $ nq

(n+10)(q-2) = nq +10q-2n-20 = $ nq; 10q-2n = 20

(n-5)(q+2) = nq - 5q +2n -10 = $ nq; - 5q +2n =10 Multiply by 2 and add to the above expression

10q - 2n = 20
-10q+4n = 20
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2n = 40
n = 20 and q = $ 6, so nq =$ 120



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