As a bicycle salesperson, Norman earns a fixed salary of $20 per week plus $6 per bicycle for the first six bicycles he sells, $12 per bicycle for the next six bicycles he sells, and $18 per bicycle for every bicycle sold after the first 12. This week, Norman earned more than twice as much as he did last week. If he sold x bicycles last week and y bicycles this week, which of the following statements must be true?
I. y > 2x
II. y > x
III. y > 3
[spoiler]
The OA is II and III; This can be solved by assuming different values of x and y, however can anybody tell me how can this be solved algebraically, under exam pressure and time constraint of 2 mins!!! [/spoiler]
Source: Manhattan GMAT CAT
I. y > 2x
II. y > x
III. y > 3
[spoiler]
The OA is II and III; This can be solved by assuming different values of x and y, however can anybody tell me how can this be solved algebraically, under exam pressure and time constraint of 2 mins!!! [/spoiler]
Source: Manhattan GMAT CAT
