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Study ArticleCGL PYQ

A toy manufacturer produced 1200 toy cars at a total cost of ₹90,000. He donated 200 cars to a charity event. For the remaining cars, he announced a 10% discount on the market price of ₹120 per car. He also offered 2 toy cars free for every 8 toy cars purchased. If all 1200 toy cars were distributed, what is his overall gain or loss percentage?

Learn how to calculate overall gain or loss percentage with discounts and free offers in a toy car manufacturing problem for SSC and Railway exams.
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172 matching questions

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RailwaysMathArea and PerimeterMedium

English: A square field is converted into a rectangle by increasing its length by 20% and decreasing its breadth by 10%. Find percentage change in area. Hindi: एक वर्गाकार मैदान को उसकी लंबाई 20% बढ़ाकर और चौड़ाई 10% घटाकर आयत बनाया जाता है। क्षेत्रफल में प्रतिशत परिवर्तन ज्ञात कीजिए।

New area factor = 1.20 × 0.90 = 1.08. Hence area increases by 8%. नया क्षेत्रफल = 1.08 गुना। अतः क्षेत्रफल में 8% वृद्धि।
RailwaysMathArea and PerimeterMedium

English: The area of a circle is reduced to 49% of its original area. Find the percentage decrease in radius. Hindi: किसी वृत्त का क्षेत्रफल उसके मूल क्षेत्रफल का 49% रह जाता है। त्रिज्या में प्रतिशत कमी ज्ञात कीजिए।

Radius becomes √49% = 70% of original. Decrease = 30%. त्रिज्या मूल का 70% रह जाती है। अतः 30% कमी।
RailwaysMathArea and PerimeterMedium

English: The area of a square is increased by 96%. Find the percentage increase in its side. Hindi: एक वर्ग का क्षेत्रफल 96% बढ़ जाता है। उसकी भुजा में प्रतिशत वृद्धि ज्ञात कीजिए।

New area = 196% = 1.96 = 1.4². Hence side increases by 40%. नया क्षेत्रफल = 196% = (140%)²। अतः भुजा में 40% वृद्धि।
RailwaysMathArea and PerimeterMedium

English: Length increases by 20% and breadth decreases by 20%. What is the percentage change in area? Hindi: आयत की लंबाई 20% बढ़ती है और चौड़ाई 20% घटती है। क्षेत्रफल में कितना प्रतिशत परिवर्तन होगा?

New area factor = 1.2 × 0.8 = 0.96. Therefore area decreases by 4%. नया क्षेत्रफल = 96% पुराना क्षेत्रफल। अतः 4% कमी होगी।
RailwaysMathArea and PerimeterHard

The radius of a circle is increased so that its area increases by 69%. Find the percentage increase in its circumference. / एक वृत्त की त्रिज्या इस प्रकार बढ़ाई जाती है कि उसके क्षेत्रफल में 69% की वृद्धि हो जाती है। उसकी परिधि में कितने प्रतिशत की वृद्धि होगी?

New area factor = 1.69. Therefore, radius factor = √1.69 = 1.3. Circumference is proportional to radius, so it increases by 30%. / नया क्षेत्रफल…