CBSE Class 12 Sample Paper for 2022 Boards (MCQ Based - for Term 1)
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CBSE Class 12 Sample Paper for 2022 Boards (MCQ Based - for Term 1)
Last updated at August 14, 2026 by Teachoo
Transcript
Question 46 ā 50 are based on Case Study -2 The fuel cost per hour for running a train is proportional to the square of the speed it generates in km per hour. If the fuel costs ā¹ 48 per hour at speed 16 km per hour and the fixed charges to run the train amount to ā¹ 1200 per hour. Assume the speed of the train as š£ km/h. Question 46 Given that the fuel cost per hour is š times the square of the speed the train generates in km/h, the value of š is: (a) 16/3 (b) 1/3 (c) 3 (d) 3/16 Given that Fuel cost per hour = k Ć (Speed of train)2 Also, given that If the fuel costs ā¹ 48 per hour at speed 16 km per hour Thus, Fuel cost per hour = k Ć (Speed of train)2 48 = k Ć 162 48 = k Ć 256 šš/ššš = k 3/16 = k k = š/šš So, the correct answer is (d)
