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If s is the product of the integers from 100 to 200 inclusiv [#permalink]

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25 Oct 2007, 16:13

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If s is the product of the integers from 100 to 200 inclusive, and if t is the product of the integers from 100 to 201 inclusive, what is 1/s + 1/t in terms of t?

A. 201^2/t B. 202*201/t C. 201/t D. 202/t E. 202*201/t^2

IF s is the product of integers from 100 to 200, inclusive, and t is the product of integers from 100 to 201, inclusive, what is 1/s + 1/t in terms of t?

A. (201)^2 / t B. [(202)(201)]/t C. 201/t D. 202/t E. [(202)(201)]/t^2

D

s = 100*...*200
t = 100*...*200*201
This means
s = t/201
Therefore,
1/s + 1/t = 201/t + 1/t = 202/t

IF s is the product of integers from 100 to 200, inclusive, and t is the product of integers from 100 to 201, inclusive, what is 1/s + 1/t in terms of t?

A. (201)^2 / t B. [(202)(201)]/t C. 201/t D. 202/t E. [(202)(201)]/t^2

Re: If s is the product of the integers from 100 to 200 inclusiv [#permalink]

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22 Aug 2015, 05:35

Hello from the GMAT Club BumpBot!

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Re: If s is the product of the integers from 100 to 200 inclusiv [#permalink]

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22 Aug 2015, 05:44

yuefei wrote:

If s is the product of the integers from 100 to 200 inclusive, and if t is the product of the integers from 100 to 201 inclusive, what is 1/s + 1/t in terms of t?

A. 201^2/t B. 202*201/t C. 201/t D. 202/t E. 202*201/t^2

Re: If s is the product of the integers from 100 to 200 inclusiv [#permalink]

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05 Oct 2016, 04:36

Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
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If s is the product of the integers from 100 to 200 inclusive, and if t is the product of the integers from 100 to 201 inclusive, what is 1/s + 1/t in terms of t?

A. 201^2/t B. 202*201/t C. 201/t D. 202/t E. 202*201/t^2

We are given that s is the product of the integers from 100 to 200 inclusive and that t is the product of the integers from 100 to 201 inclusive. Thus, we know the following:

s x 201 = t

s = t/201

We must determine the value of 1/s + 1/t in terms of t. Since we know that s = t/201, we can substitute t/201 for s in the expression 1/s + 1/t:

1/(t/201) + 1/t

201/t + 1/t

202/t

Answer: D
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Re: If s is the product of the integers from 100 to 200 inclusiv [#permalink]

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08 Oct 2017, 11:09

yuefei wrote:

If s is the product of the integers from 100 to 200 inclusive, and if t is the product of the integers from 100 to 201 inclusive, what is 1/s + 1/t in terms of t?

A. 201^2/t B. 202*201/t C. 201/t D. 202/t E. 202*201/t^2