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After the increase of price of oil by 40%, a family decided to reduce its oil consumption so that the expenditure for oil goes up by 26% only. If the total consumption of oil before the price rise was 10 kg per month, then what is the current consumption of oil per month (in kg)?

After the increase of price of oil by 40%, a family decided to reduce its oil consumption so that the expenditure for oil goes up by 26% only. If the total consumption of oil before the price rise was 10 kg per month, then what is the current consumption of oil per month (in kg)? Correct Answer 9

40% বৃদ্ধিতে, বর্তমান মূল্য 140 টাকা হলে পূর্ব মূল্য 100 টাকা বর্তমান মূল্য 126 টাকা হলে পূর্ব মূল্য ( 100/140 × 126) = 90 টাকা এখন, পূর্বে 100 টাকায় পাওয়া যেত 10 kg তেল পূর্বে 90 টাকায় পাওয়া যেত ( 10/100 × 90) = 9 kg তেল অর্থাৎ, বর্তমান ব্যবহার 9 kg ।

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III. The rival companies will also increase the price of the similar product.