Bobby earned $1510 less than Jay each month. Both of them spent $2040 each month and saved the rest of their salaries. After a few months, Bobby saved $4200 and Jay saved $7550.
- How much did Bobby earn each month?
- Bobby wanted to go on a trip that would cost him $10920. How many months did he have to save?
(a)
Amount that Jay saved more than Bobby each month = $1510
Total amount that Jay saved more than Bobby
= 7550 - 4200
= $3350
Number of months that each of them earned
= 3350 ÷ 670
= 5
Amount that Bobby's savings each month
= $4200 ÷ 5
= $840
Amount that Bobby earned each month
= 2040 + 840
= $2880
(b)
Remaining amount that Jay had to save
= 10920 - 4200
= $6720
Number of more months that Jay needed to save
= 6720 ÷ 840
= 8
Answer(s): (a) $2880 ; (b) 8