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How many integers are there between, but not including

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Re: How many integers are there between, but not including  [#permalink]

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New post 15 May 2018, 10:16
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Why did we assume that R to S is continuous series ?

can't it be 0, 1, 10

R=0, S=10 ..but number of integer between S and R will 1.
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Re: How many integers are there between, but not including  [#permalink]

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New post 15 May 2018, 10:49
ammuseeru wrote:
Why did we assume that R to S is continuous series ?

can't it be 0, 1, 10

R=0, S=10 ..but number of integer between S and R will 1.


Hello

What do you mean by continuous series - can you please make it clear?
Whichever values we assume for r/s, as far as those values satisfy the given constraint (that s - r = 10), there will always be 9 integers between them.

The values that you have taken: r=0, s=10 - here also there are 9 integers between r and s (1, 2, 3, 4, 5, 6, 7, 8, 9).
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Re: How many integers are there between, but not including  [#permalink]

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New post 06 Feb 2019, 23:29
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dzodzo85 wrote:
How many integers are there between, but not including, integers r and s ?

(1) s – r = 10
(2) There are 9 integers between, but not including, r + 1 and s + 1.

I may have mistakenly chosen the wrong answer, but nevertheless some expert explanation will help me understand this better.


Dear Moderator,
Found this DS question in the PS section, hope you will do the needful. Thank you.
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Re: How many integers are there between, but not including  [#permalink]

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New post 06 Feb 2019, 23:53
stne wrote:
dzodzo85 wrote:
How many integers are there between, but not including, integers r and s ?

(1) s – r = 10
(2) There are 9 integers between, but not including, r + 1 and s + 1.

I may have mistakenly chosen the wrong answer, but nevertheless some expert explanation will help me understand this better.


Dear Moderator,
Found this DS question in the PS section, hope you will do the needful. Thank you.

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Merged. Thank you.
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Re: How many integers are there between, but not including   [#permalink] 06 Feb 2019, 23:53

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