In a community,men contribute p each and women q each toward the community development fund.in a week ,3men and 5 women contribute a total of 9,500.00.in another week,5men and 10 women contributed a total of 17,500.

Find the;1. valve of p and q
2.total amount that will be contributed by 8men and 12women

1 answer

3p+5q = 9500
5p+10q = 17500
Replace with
3p+5q = 9500
p+2q = 3500
Now it's easy to get q:
3(3500-2q)+5q = 9500
q = 1000
so now you can find p and finish it off