13. In a library there are 1500 books. Among these
books the ratio of books about science to that
about commerce is 1:2. Determine the number
of books about science is to be purchased so that,
th
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Answer:
100 books of science
Step-by-step explanation:
Total Number of Books = 1500
Ratio of science to commerce = 1:2
(1:2)5 (3:5)2
We have to buy only science book so no. Of book of commerce remain same.
Difference is 6-5 =1 unit
And 15 unit =1500
1unit=100
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