A man spend 20% of his monthly salary on his children's education and 50% of his salary on food and transport. After Paying the rent of Rs.1000, he is left with Rs.2000. What is his monthly salary?
Solution
Correct Answer: Option B
Let his monthly salary be 'P'
20% on children's education = \(\frac{20\mathrm P}{100}\;=\;\frac{\mathrm P}5\)
50% on food and transport = \(\frac{50\mathrm P}{100}\;=\;\frac{\mathrm P}2\)
1000 on rent
= \(\begin{array}{l}\mathrm P\;-\;\frac{\mathrm P}5\;-\;\frac{\mathrm P}2\;-\;1000\;=\;2000\\=>\;3\mathrm P\;=\;30000\\=>\;\mathrm P\;=\;10000\end{array}\)
Therefore, his monthly salary = Rs. 10,000
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