A WORKS TWICE AS FAST AS B. IF B CAN COMPLETE A WORK IN 10 DAYS INDEPENDENTLY, THE NUMBER OF DAYS IN WHICH A AND B CAN TOGETHER FINISH THE WORK IS: Select the correct option
A) 11/3 DAYS
B) 10/3 DAYS
C) 12/3 DAYS
D) 3/12 DAYS
E) 3/10 DAYS
RATIO OF RATES OF WORKING OF A AND B = 2:1. SO, RATIO OF TIME TAKEN = 1:2   A'S 1 DAY'S WORK = 1/5, B'S 1 DAY'S WORK = 1/10   (A+B)'S 1 DAY'S WORK = (1/5+1/10)=3/10=10/3   SO, A AND B TOGETHER CAN FINISH THE WORK IN 10/3 DAYS.   CORRECT OPTION: 10/3 DAYS
<result>B</result>
A WORKS TWICE AS FAST AS B. IF B CAN COMPLETE A WORK IN 10 DAYS INDEPENDENTLY, THE NUMBER OF DAYS IN WHICH A AND B CAN TOGETHER FINISH THE WORK IS: