Answer: 40
Explanation:
A brown mouse has onequarter the number of
pieces of cheese as a grey mouse. After the brown
mouse took 12 pieces from the grey mouse, and the grey mouse
ate 6 of her remining pieces of cheese, they each have the same
number of pieces of cheese. How many pieces did the grey
mouse have initially?
x= grey mouse 1/4x = brown mouse
1/4x - 18 = x +12
3/4x = 30
(4/3)3/4x=30(4/3)
x=40