Question

10. A and B together can build a wall in 10 days; B and C working together can do it in
15 days; C and A together can do it in 12 days. How long will they take to finish the
work, working all together? Also find the number of days taken by each to do the same
work, working alone.
11. A nine can fill
in loft opened​

Answer 1

Answer:

in a day AB can do 1/10 of the work

,BC can do 1/15of the work in one day

and CA can do 1/12 of the work

we get 2(a+b+c) 1's days work

1/10+1/15+1/12=

15/60

ABC=1/2*15*60=

1/8

ABC can work together in 8 days

A=1/8-1/15=7/120=120/7days

B=1/8-1/12=1/24=24days

C=1/8-1/10=1/40=40days

Answer 2

Step-by-step explanation:

(तसवीर मे उतर है)