SOLUTION: Five friends went to a restaurant and agreed to share the bill equally. However, one person forgot his wallet so the other four friends� portions of the bill went up by $4 each. Ho

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Question 247697: Five friends went to a restaurant and agreed to share the bill equally. However, one person forgot his wallet so the other four friends� portions of the bill went up by $4 each. How many dollars was the total bill?
Answer by ankor@dixie-net.com(22740) (Show Source):
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Five friends went to a restaurant and agreed to share the bill equally.
However, one person forgot his wallet so the other four friends� portions of the bill went up by $4 each.
How many dollars was the total bill?
:
Let x = amt of the total bill
then
= the share of each originally
and
= the share actually
:
- = 4
Multiply by 20 to get rid of the denominators, results
5x - 4x = 20(4)
x = $80 is the total bill
;
:
Check:
80/4 = $20 each
80/5 = $16 each
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dif of $4