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February 20th, 2017, 10:02 AM   #1
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general math question

Hi experts,

Qus1) If John's money is 500 and Robert 's money is 800.
then what times john's money then Robert 's money.

Qus2) If John's money is 500 and Robert 's money is 800.
then what times Robert's money then John 's money.

Regards
KS
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February 20th, 2017, 10:18 AM   #2
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500(1.6) = 800

800(0.625) = 500
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February 21st, 2017, 02:36 AM   #3
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Quote:
Originally Posted by ift38375 View Post
Hi experts,

Qus1) If John's money is 500 and Robert 's money is 800.
then what times john's money then Robert 's money.

Qus2) If John's money is 500 and Robert 's money is 800.
then what times Robert's money then John 's money.

Regards
KS
The question asks "What times John's money is Robert's money?" If you write this down as a formula, you get

1) John's money x something = Robert's money

We can find the something by dividing Robert's money by John's money.

something = $\displaystyle \frac{800}{500} = 1 \frac{3}{5} = 1.6$


2) This is the same question, except that this time we multiply Robert's money by something to get John's money (it's a different something)

Robert's money x something = John's money

however, the solution is calculated in a very similar way; we just divide John's money by Robert's money

something = $\displaystyle \frac{500}{800} = \frac{5}{8} = 0.625$
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February 21st, 2017, 02:40 AM   #4
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1. Let Robert's money is $x$ times of John's money so,

Robert's money = $x\times$ John's money

$800=x\times 500$

$\dfrac{800}{500}=x=1.6$

2. Let John's money is $y$ times of Robert's money so,

John's money = $y\times$ Robert's money

$500=y\times 800$

$\dfrac{500}{800}=y=0.625$
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