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Re: A credit card company has a cash back option for their customers which [#permalink]
i back solved it by picking numbers from answer choices:
C: 25k total charge
that means 15k will be cash back with 3% or 450 total $ cash back
on first 10k will be 200 $ cash back. So total cash back would be 650$
650/25,000 - 65/2500 divide by 5 = 13/500 multiply by 2 = 26/1000 or 2.6%
C.
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Re: A credit card company has a cash back option for their customers which [#permalink]
Let T be the total spent.

Customer earns $200 on first $10k. So, the total cash back equals:

$200 + .03(T - 10k) = .026T.

$200 + .03T - 300 = .026T

.03T = .026T + 100

.004T = 100.

T = 25k.
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Re: A credit card company has a cash back option for their customers which [#permalink]
Hello from the GMAT Club BumpBot!

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Re: A credit card company has a cash back option for their customers which [#permalink]
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