Given that a/b=3/5 and b/c=4/5
Find a:b:c giving your answer in its simplest form

12 : 20 : 25

Step-by-step explanation:

Express the ratios in terms of a

= ( cross- multiply )

3b = 5a ( divide both sides by 3 )

b = a

= ( cross- multiply )

4c = 5b ( divide both sides by 4 )

c = b = × a = a

Then

a : b : c

= a : a : a ( multiply each part by 12 to clear the fractions )

= 12a : 20a : 25a ( divide each part by a )

= 12 : 20 : 25

answer: 1, 3 and 5 are correct

step-by-step explanation: