Question

if a/2=b/3=c/5, then find the value of a+b+c/a

Answer 1

let a/2=b/3=c/5=x.then a=2x .b=3x c=5x.now a+b+c+÷a=(2x+3x+5x)÷2x=10x÷2x=5....


HOPE YOU UNDERSTAND...

Answer 2

Answer:

a/2 = b/3 = c/5

==> a/2 = b/3' and b/3 = c/5 and a/2 = c/5

==> 3a = 2b  and 5b = 3c and 5a = 2c

so, 5a= 2c ==> a = 2c/5

and  5b = 3c

==> b = 3c/5

===>  a + b + c ÷ a

==> 2c/5 + 3c/5 + c/1 ÷ 2c/5

==> 2c+3c+5c/5 ÷ 2c/5

==> 10c/5  ÷  2c/5

==> 10c/5 × 5 / 2c

==> 10c/2c ==> 5

so, answer = 5

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