Question

the ratio of my text book and story book is 4:3.if number of text book 28 , let's find the number of story book and total number of books.​

Answer 1

story book-. 21. , total book.-49

Step-by-step explanation:

let's text book is -4x

and story book is. -3x

the no. of text book is-28. (given)

so 4x =28

x =28/4=7

then, 3x=3*7=21

then the no of story book is -21

and total no.of book is -. 28+21=49

Answer 2

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Given

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• Ratio of text book and story book = 4 : 3

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• Text book = 28

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To Find

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• Total number of books

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Solution

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Let text book be 4x and story book be 3x.

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$\bf Text \: Book = 28$

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$\bf \implies4x = 28$

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$\bf \implies x = \frac{28}{4}$

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$\bf \implies x = 7$

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$\bf Story \: Book = 3x$

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$\bf = 3 \times 7$

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$\bf= 21books$

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Similarly,

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$\bf Text \: Book = 4x$

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$\bf= 4 \times 7$

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$\bf = 28$

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Total Books = 28 + 21 = 49

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Therefore, there are 21 story books and there are total 49 books.