Which item has profit in the same percentage on cost during first two and last two years only?किस वस्तु का लागत पर लाभ प्रतिशत केवल पहले दो और अंतिम दो वर्षों में समान रहता है?

1. AA
2. BB
3. CC
4. DD

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Correct answer: C. C

Explanation

Item C: 3750/25000 = 15%, 4125/27500 = 15%, 4000/40000 = 10%, 4995/33300 = 15%, 5100/34000 = 15%. The percentage is the same (15%) in 2015, 2016, 2018 and 2019 but drops to 10% in 2017, so the answer is Item C.वस्तु C: 3750/25000 = 15%, 4125/27500 = 15%, 4000/40000 = 10%, 4995/33300 = 15%, 5100/34000 = 15%। 2015, 2016, 2018 और 2019 में लाभ प्रतिशत समान (15%) है, किंतु 2017 में घटकर 10% रह जाता है। अतः उत्तर वस्तु C है।