Total earnings :
Month 1 =1500
Month 2=3000
Month 3=4,500
Month 4=6000
Month 5=7500
Month 6=9000
After how many months will the gym employee have made 19,500 ? 19,500 divide by 1,500 (how much he earned in a month ) equals to 13. So he earned 19,500 during 13 months
Explanation : we know that he earned 4.5k for 3 months so we have to find out how much he earned in 1 month by dividing 4500 and 3 . 4500:3 = 1500 . To find how much he got in 2 months , we multiply 1500 by 2 . And so on