You are Here : Home » Aptitude » Percentages Out of his income Mr Raj spends 20% on house rent and 70% of the rest on household expenditure. If he saves Rs 3600 per month, then his total income per month (in Rs) is A. 10000 B. 15000 C. 10500 D. 12000 Answer Workspace Report Discuss Answer with explanation Answer: Option B Explanation Let the total income of Mr Raj be Rs p He spends 20% of income on house rent = 20% of p = (20/100) x p = 0.20p Remaining income = (p – 0.2p)= Rs. 0.8p Now he spends 70% of remaining 0.8p on household items, so he is left with 30% of 0.8p = (30/100) x 0.8p = 0.24p Given that 0.24p = 3600 Þ x = 3600/0.24 = Rs 15000 Workspace
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