a- യുടെ 30% = b- യുടെ 20% ആയാൽ (a+b): (b - a) എത്രA3:2B2:3C1:5D5:1Answer: D. 5:1 Read Explanation: a× 30% = b × 20% a/b = 20/30 = 2/3 ( a+b) : (b-a) = (2+3):(3-2) = 5:1Read more in App