Discussion
Ram spends 65% of his salary and saves ₹ 525 per month. Then what is his monthly income ?
Answer: B
His monthly income is ₹ 1500.
If Ram spends 65% of his salary, he saves the remaining 35%, and that is ₹ 525:
\[ \begin{aligned} 0.35 \times S &= 525 \\ S &= \frac{525}{0.35} = 1500 \end{aligned} \]
Check: 65% of 1500 is 975 and 1500 - 975 = 525. The other options give savings of ₹ 420, ₹ 630 and ₹ 735, so none matches. A common slip is dividing 525 by 0.65 (giving about ₹ 808), which treats the savings as the spent share.
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