SOLUTION: Martha's schoolmates presented to her a bracelet costing 48 pesos for her eighteenth birthday. If three more friends had contributed, the cost to each would have been halved. How m

Algebra ->  Customizable Word Problem Solvers  -> Coins -> SOLUTION: Martha's schoolmates presented to her a bracelet costing 48 pesos for her eighteenth birthday. If three more friends had contributed, the cost to each would have been halved. How m      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 1138530: Martha's schoolmates presented to her a bracelet costing 48 pesos for her eighteenth birthday. If three more friends had contributed, the cost to each would have been halved. How many friends bought the gift?
Found 2 solutions by josgarithmetic, greenestamps:
Answer by josgarithmetic(39625) About Me  (Show Source):
You can put this solution on YOUR website!
48%2Fn pesos per schoolmate as done

48%2F%28n%2B3%29=%281%2F2%29%2848%2Fn%29 if three more schoolmates participated

-
48%2F%28n%2B3%29=24%2Fn
48n=24%28n%2B3%29
48n=24n%2B72
24n=72
highlight%28n=3%29
Three friends bought the gift.

Answer by greenestamps(13203) About Me  (Show Source):
You can put this solution on YOUR website!


If the cost for each is halved, then the number of people contributing was doubled.

Since the cost for each is halved when 3 more people contribute, then the original number of people was 3.