Whoever gets it right gets a medal. A quiz for you, i know the answer.
11 minutes left

Every month, a girl gets allowance. Assume last year she had no money, and kept it up to now. Then she spends 1/2 of her money on clothes, then 1/3 of the remaining money on games, and then 1/4 of the remaining money on toys. After she bought all of that, she had $7777 left. Assuming she only gets money by allowance, how much money does she earn every month?

Question

Whoever gets it right gets a medal. A quiz for you, i know the answer.
11 minutes left

Every month, a girl gets allowance. Assume last year she had no money, and kept it up to now. Then she spends 1/2 of her money on clothes, then 1/3 of the remaining money on games, and then 1/4 of the remaining money on toys. After she bought all of that, she had $7777 left. Assuming she only gets money by allowance, how much money does she earn every month?

anonymous · Answer

1/2  +  1/2 * 1/3 + 1/2 * 1/3 * 1/4 = amount she spent

math&ing001 · Answer

May x be the money she gets per year
x-1/2x-1/3*1/2x-1/4*1/3*1/2x=7777
ie x=26664
So the monthly income would be 2222

anonymous · Answer

congratulations.

math&ing001 · Answer

thx i guess