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Re: Roselba’s annual income exceeds twice Jane’s annual income a [#permalink]
Simply take values of J & R as 100 & 300 since its given value of R is more than twice J.
Now take 10 percent of both, since taking 10% is very easy. We find that R-30/2=15>J-10
Hence Qb>Qa
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Re: Roselbas annual income exceeds twice Janes annual income a [#permalink]
1
we can use numbers...
let,
Call Jane’s income 100.
Roselba’s income, then, is greater than 200.
If both pay 10% in transportation fees, then Jane pays $10 and Roselba pays more than $20.
Half of Roselba’s amount equals more than $10.
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Re: Roselbas annual income exceeds twice Janes annual income a [#permalink]
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