Emma has two cats called Luna and Bella.
Both cats eat the same food but have different appetites.
Luna is fed 1/4 of a tin of cat food, 3 times a day.
Bella is fed 1/3 of a tin of cat food, 2 times a day.
Emma has 13 tins of cat food left.
How many days will the cat food last?
Answer:
Total number of tins consumed each day = 3 x ¼ + 2 x 1/3 = 3/4 + 2/3 = (9 + 8) /12 = 1.41667
13 / 1.41667 = 9.176
So, the cat food will last 9 days