Question

If a/3=b/4=c/5 find the value of a:b:c forpractice

Answer 1

if
a/3=b/4=c/5
then a:b:c
=3:4:5

Answer 2

Hey there!!

a / 3 = b / 4

4a =3b

4a / b = 3

a / b = 4 / 3

a : b = 4 : 3

b / 4 = c / 5

5b = 4c

5b / c = 4

b / c = 5 / 4

b : c = 5 : 4

a : b = 4 : 3

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a : b : c

4 : 3

5 : 4

Trick -

Multiply a with 5 and b with b and c

( 4 ) ( 3 ) : ( 3 ) ( 5 ) : ( 3 ) ( 4 )

a : b : c = 12 : 15 : 12

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