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A car travels from a place A to B in 7 hour. It covers half the distance at 30 kmph and the remaining distance at 40 kmph, what is the total distance between A and B?
- a)120 Km
- b)250 Km
- c)240 Km
- d)150 Km
Correct answer is option 'C'. Can you explain this answer?
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Verified Answer
A car travels from a place A to B in 7 hour. It covers half the distan...
Total Distance = x
(x/2*30) +(x/2*40) = 7
x = 240
(x/2*30) +(x/2*40) = 7
x = 240
Most Upvoted Answer
A car travels from a place A to B in 7 hour. It covers half the distan...
1)The car is is travel from A to B in 7 hr.
2)and it covers the x/2 distance at 30 kmph and the remaining distance at 40kmph.
3)while the total distance between A and B is ?
7= D/2×30 + D/2×40
7= D/60 + D/80
7=D(60+80)/4800
7=D 140/4800
7=D7/240
1=D/240
thus,D = 240 Kms.
2)and it covers the x/2 distance at 30 kmph and the remaining distance at 40kmph.
3)while the total distance between A and B is ?
7= D/2×30 + D/2×40
7= D/60 + D/80
7=D(60+80)/4800
7=D 140/4800
7=D7/240
1=D/240
thus,D = 240 Kms.
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Community Answer
A car travels from a place A to B in 7 hour. It covers half the distan...
Problem:
A car travels from a place A to B in 7 hour. It covers half the distance at 30 kmph and the remaining distance at 40 kmph, what is the total distance between A and B?
Solution:
Let's assume that the total distance between A and B is 'd' km.
Distance covered in the first half of the journey = d/2 km
Distance covered in the second half of the journey = d/2 km
Time taken to cover the first half of the journey = (d/2)/30 = d/60 hours
Time taken to cover the second half of the journey = (d/2)/40 = d/80 hours
Total time taken to cover the entire journey = 7 hours
Therefore, d/60 + d/80 = 7
Simplifying the above equation, we get d = 240 km
Hence, the total distance between A and B is 240 km.
Answer: Option C (240 km)
A car travels from a place A to B in 7 hour. It covers half the distance at 30 kmph and the remaining distance at 40 kmph, what is the total distance between A and B?
Solution:
Let's assume that the total distance between A and B is 'd' km.
Distance covered in the first half of the journey = d/2 km
Distance covered in the second half of the journey = d/2 km
Time taken to cover the first half of the journey = (d/2)/30 = d/60 hours
Time taken to cover the second half of the journey = (d/2)/40 = d/80 hours
Total time taken to cover the entire journey = 7 hours
Therefore, d/60 + d/80 = 7
Simplifying the above equation, we get d = 240 km
Hence, the total distance between A and B is 240 km.
Answer: Option C (240 km)
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