Question

Solution : Ediciency of A
10
Efficiency of Band C
3
100%
dy
Eticiency of and A =
2
5% =
1
120
(days)
2.5 =
6
2.5 %
--640-2,5
– Eficiency of C =
So the required ratio is 1 : 3.
EXERCISE 3D
then find the fraction of the work that is left.
C alone can do the job?
davs they
We observe that efficiency of A and B are equal and equal to 2.5%
= A can do the job in 40 days and C can do the job in 120 days (alone)
A can do a work in 15 days and B in 20 days. If they work on it together
2. A can lay railway track between two given stations in 16 days and B can do
job in 12 days. With help of C, they did the job in 4 days only. Then, in how
3. A, B and C can do a piece of work in 20, 30 and 60 days respectively. In hes
4. A is thrice as good as workman as B and therefore is able to finish a job in
days can A do the work if he is assisted by B and C on every third day!​

Answer 1

Answer:

1391080174biiojbvgy

Answer 2

Answer:

well I hope somebody will answer your question