A can do a work in 15 days and b in 10 days ,b left after 4 days than how many days a alone can complete the work
Answers
Answered by
0
by using lcm of 15 and 10
total work is lcm
lcm = 30
they separate per days work in united
A = 30/15 = 2 unit
B = 30/10 = 3 unit
A + B together 4 days
2 + 3 = 5 × 4 = 20 unit complete
remains work = 30 - 20 = 10 unit
A do 10/2 = 5 days
total work is lcm
lcm = 30
they separate per days work in united
A = 30/15 = 2 unit
B = 30/10 = 3 unit
A + B together 4 days
2 + 3 = 5 × 4 = 20 unit complete
remains work = 30 - 20 = 10 unit
A do 10/2 = 5 days
Similar questions