A gambler has won 40% of his 40 poker games for the week so far.
A gambler has won 40% of his 40 poker games for the week so far. If, all of a sudden, his luck changes and he begins winning 70% of the time, how many more games must he play to end up winning 60% of all his games for the week?
Answer/Solution
80
Steps/Work
Let x be the number of additional games the gambler needs to play.
0.4(40) + 0.7x = 0.6(x+40)
0.1x = 8
x = 80
The answer is D.
0.4(40) + 0.7x = 0.6(x+40)
0.1x = 8
x = 80
The answer is D.