The fuel cost for the train to travel 500 km at the most economical speed is:
(a) ₹ 3750 (b) ₹ 750 (c) ₹ 7500 (d) ₹ 75000
CBSE Class 12 Sample Paper for 2022 Boards (MCQ Based - for Term 1)
CBSE Class 12 Sample Paper for 2022 Boards (MCQ Based - for Term 1)
Last updated at Dec. 16, 2024 by Teachoo
Transcript
Question 49 The fuel cost for the train to travel 500 km at the most economical speed is: (a) ₹ 3750 (b) ₹ 750 (c) ₹ 7500 (d) ₹ 75000 Now, in our Cost function C(𝒗) C(𝒗) = 𝟑𝟕𝟓/𝟒 𝒗 + 𝟔𝟎𝟎𝟎𝟎𝟎/𝒗 Thus, Fuel Cost = 375/4 𝑣 = 375/4 × 80 = Rs 7500 So, the correct answer is (c)