bookseller has 1200 books. 25% of them are on mathematics, 35% of them are on science
and the rest are on other subjects. Fin
Question
bookseller has 1200 books. 25% of them are on mathematics, 35% of them are on science
and the rest are on other subjects. Find the number of books of each kind.
answer
maths=300
science=420
other subject =480
plz give the explanation
it’s urgent now
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Mathematics
2 years
2021-07-15T15:29:04+00:00
2021-07-15T15:29:04+00:00 1 Answers
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Answers ( )
Answer:
I’ll explain only maths book.
Suppose there are 100 books.
So, out of 100%, there are 25% maths books.
Out of 100, there will be 25.
100 → 25 maths books (given)
1 → 25/100 = ¼ maths books
1200 → 1200 × ¼ = 300 maths books.
Same as, for science,
100 → 35
1 → 35/100
1200 → 1200 × 35/100 = 420
For others, using %es,
100 → 40
1 → 4/10
1200 → 1200 × 4/10 = 480.
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