the ratio of the number of books of math English and science is 5:12:7. if the no. of books of science is 140 find the number of books of English
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Answer:
240 books
Step-by-step explanation:
let total no of books = x
let the no of books of maths English and science be 5x , 12x and 7x
science books = 140
7/24 × x = 140
x = 140 × 24/7
x = 20 × 24
total no of books = 480
no of English books
=12/24 × 480
= 12/1 × 20
= 240 books
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