Decimal P5

Each day, Mike saves $0.50 while Carol saves $0.30 more than her. Carol starts saving 6 days after Mike. She has $17.40 more than Mike now. How much does Mike save now?


0.50 x 6 = $3.00            Amount saved by Mike in first 6 days

3.00 + 17.40 = $20.40   Additional amount saved by Carol

20.40 ÷ 0.30 = 68 days  Number of days Carol took to save $20.40 more

68 + 6 = 74 days            Total number of days Mike saved

74 x 0.50 = $37

Mike saves $37 now