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# At the rate of y yards per m minutes, how many yards does a

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At the rate of y yards per m minutes, how many yards does a [#permalink]  27 Aug 2018, 09:04
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Question Stats:

91% (00:55) correct 8% (00:56) wrong based on 23 sessions
At the rate of y yards per m minutes, how many yards does a swimmer travel in x hours?

A. $$\frac{y}{mx}$$

B. $$\frac{yx}{m}$$

C. $$\frac{60y}{mx}$$

D. $$\frac{60ym}{x}$$

E. $$\frac{60xy}{m}$$
[Reveal] Spoiler: OA

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Re: At the rate of y yards per m minutes, how many yards does a [#permalink]  29 Aug 2018, 12:35
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Carcass wrote:
At the rate of y yards per m minutes, how many yards does a swimmer travel in x hours?

A. $$\frac{y}{mx}$$

B. $$\frac{yx}{m}$$

C. $$\frac{60y}{mx}$$

D. $$\frac{60ym}{x}$$

E. $$\frac{60xy}{m}$$

We can write this in W = RT formula

let work be Y and T be m minutes then rate (R) = Y/m.

Now question asks us to find the answer in terms of Y in x hours of time.

As per our analysis , Y = RT, we got R from above

now sub R value in above equation then Y = ( Y/m) T

We have m in minutes and T as in hours then convert this into minutes T = 60x

=> Y(60x) / m.

E.
Re: At the rate of y yards per m minutes, how many yards does a   [#permalink] 29 Aug 2018, 12:35
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