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Taxi charges in a city consist of fixed charges per day and the remaining depending upon the distance travelled in kilometers. If a person travels 110 km, he pays Rs. 690, and for travelling 200 km, he pays Rs. 1050. Find the fixed charges per day and the rate per km. |
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Answer» Let fixed charge = Rs. x and charge per kilometer = Rs. y According to the question, x + 110y = 690 …(i) and x + 200y = 1050 …(ii) On subtracting Eq. (i) from Eq. (ii), we get x + 200y – x – 110y = 1050 – 690 ⇒ 90y = 360 ⇒ y = 40 On putting the value of y = 40 in Eq. (i), we get x + 110(40) = 690 ⇒ x + 440 = 690 ⇒ x = 690 – 440 = 250 Hence, monthly fixed charges is Rs. 250 and charge per kilometer is Rs. 40 |
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