Question

If a : b = 2:3&b:c=4:5 then find a : b:c
a) 8:12:15
b) 7:12:5
c) 8:9:15
d) none
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Answer 1

Answer:

a:b=2:3

a/b=2/3×4/4=8/12

a:b=8:12

b:c=4:5

b/c=4/5×3/3=12/15

b:c=12:15

a:b:c=8:12:15

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Answer 2

Answer:

a)8:12:15 is your answer