The speed of three cars is in the ratio of 2 : 3 : 4 . The ratio of the times taken by these cars to travel the same distance is -

Created: 4 months ago | Updated: 2 months ago

2 : 3 : 4

4 : 3 : 6

৪ : ৩ : ২

৬ : ৪ : ৩

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Speed=Time/Distance

Time∝1/Speed

t1=d/2x

t2=d/3x

t3=d/4x

To find the ratio of the times, we take the inverse of the speed ratios:

Ratio of times=(1/2x:1/3x:1/4x)=(1/2:1/3:1/4)

To simplify this ratio, we can find a common denominator:

(1/2:1/3:1/4)=(6/12:4/12:3/12)=6:4:3

4 months ago

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A man swimming in a stream which flows $1 \frac{1}{2}$ km/hr finds that in a given time he can swim twice as far with the stream as he can against it. At what rate does he swim?

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Created: 4 months ago | Updated: 2 months ago

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In a class 75% passed in English, 60% in Mathematics and 25% failed in both the subjects. What is the percentage who passed in both subjects?

Created: 4 months ago | Updated: 2 months ago

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The speed of three cars is in the ratio of 2 : 3 : 4 . The ratio of the times taken by these cars to travel the same distance is -

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