Question

4.
Tom and Bina read 34 books in a month. Bina and Weiming read 58 books in th
same month. Weiming read twice as many books as Tom. How many books dic
Bina read in that month?​

Answer 1

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

Tom+Bina=34

Bina +weiming=58

let Tom read x books

than weiming reads 2x books

and let Bina reads y books

then,

y+x=38. 1

y+2x=58. 2

subtracting 2 from 1

y+2x-y-x=58-38

x=20

therefore from 1

y+x=38

y+20=38

y=38-20

y= 18

hence ,Bina reads 18 books that month.