RRB Technician Grade 3 previous year question
A family's monthly income increased by 15%. They increased their monthly expenditure on food by 10% and on rent by 20%. If their initial monthly expenditure on food was ₹12,000 and on rent was ₹8,000, and their initial monthly savings were ₹15,000, what are their new monthly savings? (Assume that there is no other expenditure.)
Asked in RRB Technician Grade 3 (09 Mar 2026 Shift 2) · Quantitative Aptitude
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Correct answer: (B) ₹17,450
Initial income = 12000+8000+15000 = ₹35,000; new income = 35000×1.15 = ₹40,250. New expenditure = 12000×1.10 + 8000×1.20 = 13200+9600 = ₹22,800. New savings = 40250−22800 = ₹17,450.
हिंदी में प्रश्न
किसी परिवार की मासिक आय में 15% की वृद्धि हुई। उन्होंने भोजन पर मासिक व्यय में 10% और किराए पर 20% की वृद्धि की। यदि भोजन पर उनका प्रारंभिक मासिक व्यय ₹12,000 और किराए पर ₹8,000 था, और उनकी प्रारंभिक मासिक बचत ₹15,000 थी, तो उनकी नई मासिक बचत कितनी होगी? (मान लें कि कोई अन्य खर्च नहीं है।)
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उत्तर और व्याख्या देखें
सही उत्तर: (B) ₹17,450
प्रारंभिक आय = 12000+8000+15000 = ₹35,000; नई आय = 35000×1.15 = ₹40,250। नया व्यय = 13200+9600 = ₹22,800। नई बचत = 40250−22800 = ₹17,450।
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