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Let the income of the man be Rs. x Therefore, sum donated to NGO ‘A’ = Rs. 0.25x Sum left with NGO ‘A’ = 0.25 × 0.25x = Rs. 0.0625x Sum donated to NGO ‘B’ = Rs. 0.13x Sum left with NGO ‘B’ = 0.2 × 0.13x = Rs. 0.026x Sum donated to NGO ‘C’ = Rs. 0.27x Sum left with NGO ‘C’ = 0.5 × 0.27x = Rs. 0.135x According to the question, 0.0625x + 0.026x + 0.135x = 4470 Or, 0.2235x = 4470 Or, x = 4470/0.2235 = 20000 Therefore, income of man = Rs. 20000
385! In the trailing Zeros, let us know.
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