A does 1/2 of a piece of work in 3 1/2 hours B does 1/4 of the remainder in 1 1/2 hours and C then finishes the work in 5 1/4 hours. How long would it have taken the three working together to do the works

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try looking in the very back of the book : )

step-by-step explanation:

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i can you with this answer

step-by-step explanation:

yes, gavin is right.

step-by-step explanation:

gavin is correct. 

this problem is about converting 9% per year to how many percent per quarter. the rate is still the same. it only differed in the time period. so, through dimensional analysis,

9% per year  × (1 year / 4 quarters) = 2.25% per quarter

if he was asked to convert 9% per year to how many percent per quarter  compounded quarterly, then you will not simply divide by four. this is because compounding is not linear.

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