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Re: GMAThacks: Similar to OG question [#permalink]
26 Aug 2010, 22:22
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Okay so when you're given that the remainder is 12 you can rephrase it as:
m = k*n + 12 where k is the quotient.
But we are given that m = 24.2n.
The quotient in the first part is a whole number, and hence k = 24. We can assume this because the decimal part in the second statement given to us, i.e the 0.2 corresponds to the remainder. We get the decimal since the remainder is smaller than the divisor.
So if we substitute the value of k into this equation, we get: