Question

Find A : Cin each of the following.
(i) A: B = 1:3, C: B =4:7
ii) A:B =2/5: 4/7, B:C =1/4 : 3/7​

Answer 1

Answer:

i) A:C = 7:12

ii)A:C = 49:120

Step-by-step explanation:

i) A/B = 1/3 ; C/B = 4/7

Dividing

(A/B)/(C/B) = (1/3)/(4/7)

A/C = 7/12

A:C = 7:12

ii)A/B = (2/5) / (4/7) ; B/C = (1/4) / (3/7)

 A/B =  7/10 ; B/C = 7/12

Multiplying

A/B *B/C = 7/10 * 7/12

A/C = 49/120

A:C = 49:120