A is thrice efficient as B and C is twice as efficient as B. what is the ratio of number of days taken by A,B and C, when they work individually? Select:
A) 2:6:3
B) 2:6:9
C) 2:6:6
D) 2:6:1
E) 2:6:2
2:6:3nswer: 2:6:3) 2:6:3
<result>A</result>
A is thrice efficient as B and C is twice as efficient as B. what is the ratio of number of days taken by A,B and C, when they work individually?