1 Answer

Gowtham · Answer 1 · 2016-02-27T23:16:12+0000

2 / 4 = 1 / 2 ;
2b / 5 = 4b / 10 ;
1 / 2 = 5 / 10 ;
5 / 2 = 25 / 10 ;
4b / 10 + 5 / 10 = 25 / 10 ;
( 4b + 5 ) / 10 = 25 / 10 ;
4b + 5 = 25 ;
4b = 20 ;
b = 20 ÷ 4 ;
b = 5 .

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