In a school library for 4/15 are science books 3/10 are literature boo

1.	In a school library for 4/15 are science books 3/10 are literature books and rest are mathematics books. if the number of mathematics books is 39, find the number of science books and literature books in the library
Answer» Step-by-step explanation: LET the total no of books be x let the no of science books be 4/15x let the no of LITERATURE books be 3/10x let the no of MATHS books be 39 now, 4/15x +3/10x +39=x 8x +9x+1170/30=x 17x+1170=30x 1170=30x-17x 1170=13x 1170/13 =x 90=x therefore,total no of books is equal to 90 no of science books =4/15x =4/15×90 =24 no of literature books =3/10x =3/10×90 =27

In a school library for 4/15 are science books 3/10 are literature books and rest are mathematics books. if the number of mathematics books is 39, find the number of science books and literature books in the library

Answer»

Step-by-step explanation:

LET the total no of books be x

let the no of science books be 4/15x

let the no of LITERATURE books be 3/10x

let the no of MATHS books be 39

now,

4/15x +3/10x +39=x

8x +9x+1170/30=x

17x+1170=30x

1170=30x-17x

1170=13x

1170/13 =x

90=x

therefore,total no of books is equal to 90

no of science books =4/15x

=4/15×90

=24

no of literature books =3/10x

=3/10×90

=27