=? (take it easy)

Number Theory Level 1

If a/b=2/3 and b/c=4/5 then a+b/b+c = ? (ALSO GIVE SOLUTION PLS)

27/20 20/27 6/8 8/6

Pratik Raj by Pratik Raj , 22, India

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2 solutions

Anil Gupta
Oct 28, 2014

a/b=2/3=8/12 b/c=4/5=12/15 and so a/b/c=8/12/15 and so a+b/b+c=8+12/12+15=20/27

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sum can be solved by the method of componendo dividendo

chirag shetty - 6 years, 7 months ago
Supriya Dornala
Oct 29, 2014

as we know that a/b=2/3;b/c=4/5; (a/b)*(b/c)=a/c=8/15; ---->a=8c/15; --->b=4c/5; a+b/b+c====20/27

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