Question

Anita and shina can complete a work together in 60 days. if shina is thrice as efficient as anita, then how many days anita will take to complete the work alone

Answer 1

Anita and Shina work together and the number of days taken by both to complete work is 60 days
If Anita is 3 times efficient as Anita i.e 1/3 times efficient then number of days taken by Anita would be =  1/3 * 60 =19 - 20 days
The number of days taken if Shinna works alone than number of days will be = 60 - 19 = 41 days
So the number of days taken by Anita will be 41  to complete the task