a : b= 5:7 , b : c = 6:11 ആയാൽ, a : b : c = ?A55:42:77B30:42:77C30:40:77D30:77:42Answer: B. 30:42:77 Read Explanation: a ∶ b= (5 ∶ 7) × 6 = 30 ∶ 42 b ∶ c = (6 ∶ 11) × 7 = 42 ∶ 77 അപ്പോൾ അനുപാതം a ∶ b ∶ c ആണ് a ∶ b ∶ c = 30 ∶ 42 ∶ 77Read more in App