Remaining 47271

Forty percent of all library readers have already paid the annual reader fee, so the remaining 264 have to pay the fee. How many readers does the library have?

Correct answer:

n =  440

Step-by-step explanation:

q=40%=10040=52=0.4  q n+264=n 0.4 n+264=n  0.6n=264  n=0.6264=440  n=440

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