If for every 3 wrappers I get 1 soap free ( with wrapper of course )
How many soaps do I need to buy to get 20 soaps
Easy one.....
for every 3 soaps we get 1 more soap
3=4(3+1)
6=8(6+2)
9=12(9+3)
12=16(12=4)
15=20(15+5)
so to get 20 soaps we have to buy 15 soaps......
I think I am correct.....
correct me if i am wrong!!!!!!!!!!!