A car travels 195 km in 3 hours . how much will it take to travel 520 km ? how far will it travel in 7 hours with the same speed?
Answers
Answered by
89
If the car travels 195 in 3 hours
Then
Let x be the time taken to travel 520km
Km-----hours
195----3
520----x
Cross multiplication
195x=520×3
x=1560
x=1560/195
x=8
8 hours is taken to travel 520kms
ii)
Let the distance travelled of car in 7 hours is y
Km-----hours
195-----3
y--------7
Cross multiplication
3y=195×7
3y=1365
y=1365/3
y=455
So the car travelled 455kms in 7 hours
Then
Let x be the time taken to travel 520km
Km-----hours
195----3
520----x
Cross multiplication
195x=520×3
x=1560
x=1560/195
x=8
8 hours is taken to travel 520kms
ii)
Let the distance travelled of car in 7 hours is y
Km-----hours
195-----3
y--------7
Cross multiplication
3y=195×7
3y=1365
y=1365/3
y=455
So the car travelled 455kms in 7 hours
Answered by
8
Answer:
The car travels 195 km in 3 hrs
Step-by-step explanation:
i) Time taken for 195 km=3 hrs
Time taken for 1 km=3/195 hrs
time taken for travelling 520 km=8 hrs
ii)195*7 hrs
1365/3
455 kms
Hence,the car travelled 455 km in 7 hours
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