SOLUTION: rupees 22 was divided among 100 childrens so that each boy got 25 paise and each girl 15 paise. find the number of girls

Click here to see ALL problems on Word Problems With Coins

Question 1115223: rupees 22 was divided among 100 childrens so that each boy got 25 paise and each girl 15 paise. find the number of girls

Found 2 solutions by ikleyn, addingup:
Answer by ikleyn(52795) (Show Source):
You can put this solution on YOUR website!
.

x + y = 100 25x + 15y = 2200 etc.

Answer by addingup(3677) (Show Source):
You can put this solution on YOUR website!
By what method do you have to solve this? the substitution method is easier here:
boys x; girls y
x + y = 100 so x = 100-y
25x + 15y = 2200 substitute for x
25(100-y)+15y = 2200
2500-25y+15y = 2200
-10y = -300 divide both sides by -10, and remember that -/- = + so you can ignore the negative sign and just divide 300/10 to get your answer of how many girls.