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A locomotive engine runs at a speed of 50 km/h when no compartment is attached to it. For every new compartment that is attached to it, the speed of the train is reduced by 10% of the earlier speed. At most, how many compartments can be attached so that the train can cover a distance of 180 km in a maximum of 8 hours?
- a)7
- b)5
- c)6
- d)8
Correct answer is option 'A'. Can you explain this answer?
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Verified Answer
A locomotive engine runs at a speed of 50 km/h when no compartment is ...
Let n = number of components attached, Vn = speed of train when ‘n ’ compartm ents are attached
V0 = 50
V1 = 45
V1 = 45
V2 = 40.5 and so on
At n = 7, we get the answer.
Most Upvoted Answer
A locomotive engine runs at a speed of 50 km/h when no compartment is ...
Average speed required is 180/8= 22.5 km per h
Now for earvery caoch speed reduced 10%
With out coach speed 50 km pH with 1 c 45 kmph with 2 coach 40.5
3 36.5 4 32.85 5 29.5 6 26.5 7 23
So after 7th coach ट्train will not be able to cover distance in less than 8 hour
Now for earvery caoch speed reduced 10%
With out coach speed 50 km pH with 1 c 45 kmph with 2 coach 40.5
3 36.5 4 32.85 5 29.5 6 26.5 7 23
So after 7th coach ट्train will not be able to cover distance in less than 8 hour
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A locomotive engine runs at a speed of 50 km/h when no compartment is ...
1) maximum distance that can be travelled by the train before adding any compartment = 50km/h × 8h = 400km
2) now, for every new compartment added, the speed of train is reduced by 10% of earlier speed
3) remember the concept of successive percentage increase? lets apply it here :)
4) 10% decrease in maximum distance that can be travelled due to addition of a compartment can be writtened as - 400km × 0.9 = 360km ( can be covered in 8h with addition of a compartment which caused decrese of 10% )
lets keep adding compartments till we get our answer,
360km × 0.9 = 324km ( can be covered in 8h with addition of two compartments which caused a decrese of 10% and then again 10% with addition of second compartment )
okay, lets be quick cuz we are demonstrating successive percentage change here ~_×
400 × 0.9 × 0.9 × 0.9 × 0.9 × 0.9 × 0.9 × 0.9 = 191.31876km
adding one more compartment will make it unable to cover the desired distance in 8h.
2) now, for every new compartment added, the speed of train is reduced by 10% of earlier speed
3) remember the concept of successive percentage increase? lets apply it here :)
4) 10% decrease in maximum distance that can be travelled due to addition of a compartment can be writtened as - 400km × 0.9 = 360km ( can be covered in 8h with addition of a compartment which caused decrese of 10% )
lets keep adding compartments till we get our answer,
360km × 0.9 = 324km ( can be covered in 8h with addition of two compartments which caused a decrese of 10% and then again 10% with addition of second compartment )
okay, lets be quick cuz we are demonstrating successive percentage change here ~_×
400 × 0.9 × 0.9 × 0.9 × 0.9 × 0.9 × 0.9 × 0.9 = 191.31876km
adding one more compartment will make it unable to cover the desired distance in 8h.
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A locomotive engine runs at a speed of 50 km/h when no compartment is attached to it. For every new compartment that is attached to it, the speed of the train is reduced by 10% of the earlier speed. At most, how many compartments can be attached so that the train can cover a distance of 180 km in a maximum of 8 hours?a)7b)5c)6d)8Correct answer is option 'A'. Can you explain this answer?
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A locomotive engine runs at a speed of 50 km/h when no compartment is attached to it. For every new compartment that is attached to it, the speed of the train is reduced by 10% of the earlier speed. At most, how many compartments can be attached so that the train can cover a distance of 180 km in a maximum of 8 hours?a)7b)5c)6d)8Correct answer is option 'A'. Can you explain this answer? for Quant 2024 is part of Quant preparation. The Question and answers have been prepared according to the Quant exam syllabus. Information about A locomotive engine runs at a speed of 50 km/h when no compartment is attached to it. For every new compartment that is attached to it, the speed of the train is reduced by 10% of the earlier speed. At most, how many compartments can be attached so that the train can cover a distance of 180 km in a maximum of 8 hours?a)7b)5c)6d)8Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Quant 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A locomotive engine runs at a speed of 50 km/h when no compartment is attached to it. For every new compartment that is attached to it, the speed of the train is reduced by 10% of the earlier speed. At most, how many compartments can be attached so that the train can cover a distance of 180 km in a maximum of 8 hours?a)7b)5c)6d)8Correct answer is option 'A'. Can you explain this answer?.
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