Question

1. If A: B= 3:5 and B:C = 4:7 Find A:B:C
2. If x :y = 5:4 and 2:x = 3:8, find
3. Find the fourth proportional Of 2.1,1.5,8.4.
4. Find mean proportional of 4 and 1/16.
5. Check 0.4,0.5,2.9 and 3.5 are proportion or not.​

Answer 1

12:20:21

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