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Speed, Time and Distance ( 16 to 20 )

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Speed Time and Distance ( 16 to 20 ):


APTITUDE QUESTIONS (SPEED TIME AND DISTANCE):

16. Three persons are walking from a place X to another place Y. Their speeds are in the ratio of 3: 4: 5. The time ratio to reach Y by these persons will be:

A)    4 : 3: 5

B)    5 : 3 :4

C)    15 : 9 : 20

D)    20 : 15 : 12

E)    None of these

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17. A and B women start together to walk to a particular destination, one at 3 kmph and another at 3.75 kmph respectively. Then, the latter arrives half an hour before the former. The distance is:

A)    6 km

B)    7.5 km

C)    8 km

D)    9.5 km

E)    None of these

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18. If a person walks at 14 km/hr instead of 10 km/hr. he would have walked 20 km more. The actual distance travelled by him is:

A)    50 km

B)    66 km

C)    90 km

D)    80 km

E)    None of these


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19. X is twice as fast as Y and Y is thrice as fast as Z is. The journey covered by Z in 54 minutes will be covered by Y in:

A)    18 min

B)    27 min

C)    38 min

D)    9 min

E)    None of these

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20. Two men starting from the same place walk at the rate of 5 kmph and 5.5 kmph respectively. How much time will they take to be 8.5 km apart, if they walk in the same direction?

A)    4 hrs

B)    8 hrs

C)    16 hrs

D)    17 hrs

E)    None of these

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