Dean is a keen cricketer and he uses a cricket bowling machine to his batting . If the machine is set bowl three balls every two minutes: a) How many balls will be bowled in 30 minutes
b) how long it take Dean to bat 48 balls ?
a) In 30 minutes, the machine will bowl for 30/2 = <<30/2=15>>15 cycles of 2 minutes each.
Therefore, it will bowl 15 x 3 = <<15*3=45>>45 balls in 30 minutes.
b) If the machine bowls 3 balls in 2 minutes, then it bowls 48 balls in 48/3 = <<48/3=16>>16 cycles of 2 minutes each.
Therefore, it will take Dean 16 x 2 = <<16*2=32>>32 minutes to bat 48 balls. Answer: \boxed{32}.