Home  >  Quantitative Aptitude and Numerical Ability For Competitive Examinations  >  Time - Speed and Distance

Directions : The cost of fuel running the engine of an army tank is proportional to the square of the speed and Rs. 64 per hour for a speed of 16 kmph. Other costs amount to Rs. 400 per hour. The tank has to make a journey of 400 km at a constant speed. - The most economical speed for this journey is :

🎲 Try a Random Question  |  Total Questions in Quiz: 94  |  🧠 Study this quiz with Flashcards
This question is part of a full practice quiz:
Time - Speed and Distance — practice the complete quiz, review flashcards, or try a random question.
🧠 Flashcards (fast review) 🧪 Practice Quiz ⚔️ Challenge a Friend 🥊 📊 View Stats

Directions : The cost of fuel running the engine of an army tank is proportional to the square of the speed and Rs. 64 per hour for a speed of 16 kmph. Other costs amount to Rs. 400 per hour. The tank has to make a journey of 400 km at a constant speed. - The most economical speed for this journey is :






ADVERTISEMENT
 
❤ If you liked Fatskills, consider supporting us by checking out The Life Manuals You Never Got.

🌈  Our mission is to help improve your scores in any subject and exam withonline quizzes, practice tests, study guides, & advice for students. Since 2018.
About | Explore | User Guide | Topics | Subjects | Doubt Solver | Career Aptitude Test | Answers | Free Tools | What Should We Know?
Privacy | Terms |
Without work one finishes nothing. - Ralph Waldo Emerson
© 2026 Fatskills.com

All trademarks, logos and brand names are the property of their respective owners. All company, product and service names used in this website are for identification purposes only. Use of these names, trademarks and brands does not imply endorsement.