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Q: If a : b = 5 : 8 and c : b = 4 : 3, then a : b : c is equal to:
  • A. 15 : 24 : 28
  • B. 15 : 24 : 32
  • C. 5 : 8 : 6
  • D. 5 : 6 : 8
Correct Answer: Option B - a : b = (5 : 8) x 3 = 15 : 24 (on equalizing b) c : b = (4 : 3) x 8 = 32 : 24 a : b : c = 15 : 24 : 32
B. a : b = (5 : 8) x 3 = 15 : 24 (on equalizing b) c : b = (4 : 3) x 8 = 32 : 24 a : b : c = 15 : 24 : 32

Explanations:

a : b = (5 : 8) x 3 = 15 : 24 (on equalizing b) c : b = (4 : 3) x 8 = 32 : 24 a : b : c = 15 : 24 : 32