After spending 20% of his pocket money, Mike had $2.40 left. How much did he spend?
(1) $0.60
(2) $3.00
(3) $9.60
(4) $12.00
20%n/20% = 2.40/20%
n = 12
so he spent = 12 - 2.40 = 9.60
(1) $0.60
(2) $3.00
(3) $9.60
(4) $12.00
n = 12
so he spent = 12 - 2.40 = 9.60