Percentage Practice Test 5 with solutions

Question : 20 of 40

Marks: +1, -0

A book seller after selling books 45% his books, was left with 440 books. How many books did he have initially?

Solution:

Suppose initially he had x books.
Then (100 - 45)% of x = 440
55% of x = 440

55/100×x=440

x=440×100/55=800

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