Maria's penny bank is 1/3 full. After she removes 240 pennies, it is 1/9 full. How many pennies can Maria's bank hold?

Answer 1

240 = (1/3 - 1/9) x - where x is the piggy bank capacity

240 = (3/9 - 1/9) x

240 = 2/9 X

1080 = X

at start =360 coins; after 240 coins removed we have 120 coins which is 1/9 of 1080