The price of a plane ticket has increased from $150 to $200. by what percent has the price increased?
a) 15%
b) 25%
c) 33%
d) 50%

b) 1/3 * 1/5

step-by-step explanation:

each smallest part is 1/15 since the written one is 1/5 and it's divided by 3 equal parts. (1/5 )/3 = 1/15 = 1/3 * 1/5