Instructions

Study the following table and answer the questions:
The table below depicts the Number of Books Sold by 5 cities during 5 months.

Question 80

if 30% of the total number of books sold by City B, D and E together in July were academic books, how many non — academic books were sold by the same Cities together in the same month?

Solution

total number of books sold by City Bin July=208

total number of books sold by City D in July=187

total number of books sold by City E in July=175

total number of books sold by City B, D and E together in July=208+187+175=570

30% of 570=$$\frac{30}{100}\times570=171$$

non — academic books=570-171=399

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