To determine how much you will save in 15 months based on saving $100 in 5 months, we can calculate as follows:
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Rate of savings: If you save $100 in 5 months, your monthly savings rate is: \[ \frac{100}{5} = 20 \text{ dollars per month} \]
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Savings in 15 months: At the rate of $20 per month, in 15 months you will save: \[ 20 \text{ dollars/month} \times 15 \text{ months} = 300 \text{ dollars} \]
Now, if you change your saving amount to $110 in 5 months, we can similarly calculate the monthly savings:
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New rate of savings: If you save $110 in 5 months, your new monthly savings rate is: \[ \frac{110}{5} = 22 \text{ dollars per month} \]
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Savings with the new rate in 15 months: At the new rate of $22 per month, in 15 months you will save: \[ 22 \text{ dollars/month} \times 15 \text{ months} = 330 \text{ dollars} \]
Conclusion:
- In 15 months, you will save $300 with the original savings plan.
- If you change your savings to $110 in 5 months, your total savings will increase to $330.
The correct response would be: In 15 months, you will save $300. If you change your savings to $110, your total savings will increase.
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