Discussion
The data given in the following table summarizes the monthly budget of an average household.
| Category | Amount (Rs.) |
|---|---|
| Food | 4000 |
| Clothing | 1200 |
| Rent | 2000 |
| Savings | 1500 |
| Other expenses | 1800 |
The approximate percentage of the monthly budget NOT spent on savings is
Answer: D
About 86% of the budget is not spent on savings.
First total the budget, then take the savings share away from 100%:
\[ \begin{aligned} \text{Total} &= 4000 + 1200 + 2000 + 1500 + 1800 \\ &= 10500 \\ \text{Savings} &= \frac{1500}{10500} \times 100 \approx 14.3\% \\ \text{Not savings} &\approx 100 - 14.3 = 85.7\% \end{aligned} \]
14% is the share that is saved, the trap answer for anyone who misses the NOT. 10% and 81% match no ratio of the table's figures.
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