Two sisters open saving accounts with $60 each that their grandmother gave them. The first sister adds $20 each month to her acc ount. Her sister adds $40 every two months to her $60. If the sisters continue to make deposits at the same rate, when will they have the same amount of money?
2 answers:
Answer:
Second month with $100 savings each
Step-by-step explanation:
Opening savings= $100 each
Additional savings
Sister 1 deposit = $20/month
Sister 2 deposit= $40 every 2 months.
First month= opening savings+ additional savings
Sister 1= $60+$20= $80
Sister 2=$60+$0= $60
Second month=
Total month savings+ additional deposit
Sister 1=$80+$20=$100
Sister 2=$60+$40=$100
At the end of the second month, the both have $100 each
Month 1 Sister 1; 60/ Sister 2; 60 Month 2 Sister 1; 80/ Sister 2; 60 Month 3 Sister 1; 100/ Sister 2; 100 On month 3 the should both have $100 in their accounts.
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