Answers

2015-08-21T19:13:43+05:30
Already completed work how can alone can do again

0
2015-08-21T19:50:09+05:30
1/15 part
(a+b)
-a
=1/5-1/20
L .C .M=20
5/20-3/20=5-3/20
2/20=1/30
=30 DAYS
0