9. (A) If A : B = 5:6 and B : C = 7: 8 and C: D = 9: 10, find the ratio
of A:B:C:D
[Ans. A:B:C: D = 105 : 126 : 144 : 160]
(B) If A:B = 3 : 4, B: C = 6 : 9 and C: D = 12 : 19, then find A: B:
C: D.
(Ans. 6: 8:12:19)
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Step-by-step explanation:
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Step-by-step explanation:
A:B=3:4
B:C=6:9
5 : 6
7 : 8
------------------------------
35 : 42 : 48
9 : 10
---------------------------------
35× 2 : 45 ×2 ×46 ×9 : × 48 ×10
2) A : B = 3 : 4
B: C = 6 : 9
3 : 4
6 : 9
-----------------------
18 : 24 : 36
6 : 8 : 12
12 : 19
-----------------------------
6 × 12 : 8 × 12 × 12 : 12
6 : 6 : 12 : 19
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