RRB Technician Grade 3 previous year question
Mr. John spent 20% of his monthly income on food and 20% on children's education. 40% of the remaining income, he spent on shopping and transport together and 20% of the rest was spent on medical expenses. If he is left with ₹23,040, after all these expenditures, what is his monthly income?
Asked in RRB Technician Grade 3 (10 Mar 2026 Shift 2) · Quantitative Aptitude
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Correct answer: (C) ₹80,000
Let income = I. After spending 20%+20% on food and education, 60% remains (0.6I). After spending 40% of that on shopping/transport, 60% of it remains (0.36I). After spending 20% of that on medical, 80% remains: 0.36I×0.8 = 0.288I = 23040, giving I = ₹80,000.
हिंदी में प्रश्न
मिस्टर जॉन अपनी मासिक आय का 20% भोजन पर तथा 20% बच्चों की शिक्षा पर खर्च करते हैं। शेष आय का 40% वे खरीदारी और परिवहन पर मिलाकर खर्च करते हैं और बाकी का 20% चिकित्सा व्ययों पर खर्च करते हैं। यदि इन सभी व्ययों के बाद उनके पास ₹23,040 बचते हैं, तो उनकी मासिक आय ज्ञात कीजिए।
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सही उत्तर: (C) ₹80,000
मान लीजिए आय = I है। भोजन व शिक्षा पर 20%+20% खर्च करने के बाद 60% (0.6I) बचता है। इसमें से 40% खरीदारी/परिवहन पर खर्च करने पर 60% (0.36I) बचता है। इसमें से 20% चिकित्सा पर खर्च करने पर 80% बचता है: 0.288I = 23040, अतः I = ₹80,000।
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