A professional gambler has won 40% of his 25 poker games for he week so far. If, all of a sudden his luck changes and he begins winning 80% of the time, How many more games he must play to end up winning 60% of all his games for the week?
25 More games
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AIM TO CRACK GMAT
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Anju@Gurome
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Easiest way to solve this problem is to note that 60% is exactly the midpoint of 40% and 80%.AIM TO CRACK GMAT wrote:A professional gambler has won 40% of his 25 poker games for he week so far. If, all of a sudden his luck changes and he begins winning 80% of the time, How many more games he must play to end up winning 60% of all his games for the week?
Hence, he must play the same number of games he has already played, i.e. 25 games.
Anju Agarwal
Quant Expert, Gurome
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Quant Expert, Gurome
Backup Methods : General guide on plugging, estimation etc.
Wavy Curve Method : Solving complex inequalities in a matter of seconds.
§ GMAT with Gurome § Admissions with Gurome § Career Advising with Gurome §
