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The distance between two towns is x kms. A car travelling between town

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The distance between two towns is x kms. A car travelling between town  [#permalink]

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New post Updated on: 27 Jan 2019, 06:37
1
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

87% (01:39) correct 13% (01:56) wrong based on 23 sessions

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The distance between two towns is x kms. A car travelling between towns covers first k km at an average speed of y km/hr and the remaining distance at z km/hr. The time taken for journey is

A. k/y + (x-k)/z
B. ky + (k-x)/z
C. k/y + (k-x)/z
D. ky + z(x-k)
E. ky +(x-k)/z

Originally posted by wishalsp333 on 27 Jan 2019, 06:27.
Last edited by wishalsp333 on 27 Jan 2019, 06:37, edited 1 time in total.
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Re: The distance between two towns is x kms. A car travelling between town  [#permalink]

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New post 27 Jan 2019, 06:34
Total distance = x
First k at y kmph and remaining x-k at z kmph.
Time taken = k/y + (x-k)/z

A is the answer.

wishalsp333. Option A and E are same.

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Re: The distance between two towns is x kms. A car travelling between town   [#permalink] 27 Jan 2019, 06:34
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The distance between two towns is x kms. A car travelling between town

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