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- If 2a=6b and 9b=7c, Find a:b:c?
Question 1:
If 2a=6b and 9b=7c, Find a:b:c? A. 42:18:14
B. 3:9:7
C. 9:27:22
D. 21:7:9
Feedback (2a = 6b => a/b = 6/2)
and (9b = 7c => b/c = 7/9)
=> a:b = 6:2 and b:c = 7:9
a:b:c = 42:14:18 = 21:7:9
and (9b = 7c => b/c = 7/9)
=> a:b = 6:2 and b:c = 7:9
a:b:c = 42:14:18 = 21:7:9
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