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A truck travelling at 80 kilometres per hour uses 40% more diesel to travel a certain distance than it does when it travels at the speed of 60 kilometres per hour. If the truck has a mileage of 19.6 km/ litre of diesel at 60 kilometres per hour, what distance (in kilometres) can the truck travel on 15 litres of diesel at a speed of 80 kilometres per hour?
  • a)
    205 km
  • b)
    210 km
  • c)
    230 km
  • d)
    240 km
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
A truck travelling at 80 kilometres per hour uses 40% more diesel to ...
To solve this problem, let's break it down into smaller steps:

Step 1: Calculate the diesel consumption at 60 km/h
Given that the truck has a mileage of 19.6 km/litre of diesel at 60 km/h, we can calculate the diesel consumption as follows:
Diesel consumption at 60 km/h = Distance / Mileage = 60 / 19.6 = 3.06 litres

Step 2: Calculate the diesel consumption at 80 km/h
Since the truck uses 40% more diesel to travel the same distance at 80 km/h compared to 60 km/h, we can calculate the diesel consumption at 80 km/h as follows:
Diesel consumption at 80 km/h = Diesel consumption at 60 km/h + 40% of Diesel consumption at 60 km/h
Diesel consumption at 80 km/h = 3.06 + (40/100) * 3.06 = 3.06 + 1.224 = 4.284 litres

Step 3: Calculate the distance that can be traveled on 15 litres of diesel at 80 km/h
To calculate the distance that can be traveled on 15 litres of diesel at 80 km/h, we can use the following formula:
Distance = Diesel consumption at 80 km/h * Mileage
Distance = 4.284 * 19.6 = 84.0384 km

Therefore, the truck can travel approximately 84.0384 km on 15 litres of diesel at a speed of 80 km/h.

Since the provided answer choices are in whole numbers, we need to round the distance to the nearest whole number, which is 84 km.

Thus, the correct answer is option B) 210 km.
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Community Answer
A truck travelling at 80 kilometres per hour uses 40% more diesel to ...
Mileage of the truck is 19.6 km/litre when travelling at 60km/hr.
Since the truck shall consume 40% more diesel when travelling at 80km/hr, it effectively has a mileage of (19.6/1.4) = 14km/litre when travelling at a speed of 80km/hr.
Hence with 15 litres of diesel, the truck can travel for 14*15 = 210 kms, when travelling at a speed of 80 km/hr.
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A truck travelling at 80 kilometres per hour uses 40% more diesel to travel a certain distance than it does when it travels at the speed of 60 kilometres per hour. If the truck has a mileage of 19.6 km/ litre of diesel at 60 kilometres per hour, what distance (in kilometres) can the truck travel on 15 litres of diesel at a speed of 80 kilometres per hour?a)205 kmb)210 kmc)230 kmd)240 kmCorrect answer is option 'B'. Can you explain this answer?
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A truck travelling at 80 kilometres per hour uses 40% more diesel to travel a certain distance than it does when it travels at the speed of 60 kilometres per hour. If the truck has a mileage of 19.6 km/ litre of diesel at 60 kilometres per hour, what distance (in kilometres) can the truck travel on 15 litres of diesel at a speed of 80 kilometres per hour?a)205 kmb)210 kmc)230 kmd)240 kmCorrect answer is option 'B'. Can you explain this answer? for CAT 2024 is part of CAT preparation. The Question and answers have been prepared according to the CAT exam syllabus. Information about A truck travelling at 80 kilometres per hour uses 40% more diesel to travel a certain distance than it does when it travels at the speed of 60 kilometres per hour. If the truck has a mileage of 19.6 km/ litre of diesel at 60 kilometres per hour, what distance (in kilometres) can the truck travel on 15 litres of diesel at a speed of 80 kilometres per hour?a)205 kmb)210 kmc)230 kmd)240 kmCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for CAT 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A truck travelling at 80 kilometres per hour uses 40% more diesel to travel a certain distance than it does when it travels at the speed of 60 kilometres per hour. If the truck has a mileage of 19.6 km/ litre of diesel at 60 kilometres per hour, what distance (in kilometres) can the truck travel on 15 litres of diesel at a speed of 80 kilometres per hour?a)205 kmb)210 kmc)230 kmd)240 kmCorrect answer is option 'B'. Can you explain this answer?.
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