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Each room would be 1 hour because it say that two rooms get painted in two hours <span />
Answer:
I think its 229
if you take how many yellow marbles he got out of 7 it would be 3/7 and then I divided 400 by 7 and got 57. something so I multiplied 3 times 57 and got 171. So if you take 400-171 you get 229
Answer:
The answer is 8 bicycles : 15 wheels