Sagot :
Nial can complete 1/4 part of the job in 1 day
Nial & Celine can complete 1/(7/3) = 3/7 part of a job in 1 day
thus Celine can complete 3/7 - 1/4 = (12-7)/28 = 5/28 part of a job in 1 day
# of days Celine will take to do the whole job = 28/5 = 5 3/5 days
Nial & Celine can complete 1/(7/3) = 3/7 part of a job in 1 day
thus Celine can complete 3/7 - 1/4 = (12-7)/28 = 5/28 part of a job in 1 day
# of days Celine will take to do the whole job = 28/5 = 5 3/5 days