Question

if a:b=7:5 and b:c=9:11 find 1.a:c 2.a:b:c​

Answer 1

Answer:

63:45:55

Step-by-step explanation:

a:b = 7:5 eq...1

b:c = 9:11 eq...2

multiply eq...1 by 9 and eq...2 by 5

a:b = 63:45

b:c = 45:55

hence, a:b:c = 63:45:55

Hint(make b same in both ratio)

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Answer 2

Answer:

A:C= 63:55

A:B:C=63:45:55

a:b=7:5

b:c=9:11

final A=(7*9)=63

B=9*5=45

C=5*11=55