A does 20% less work than B .If a complete
a piece of work in 7& 1/2 hours then B can do it in
options- 5,5&1/2,6,6&1/2
plz solve without using x and y method
a piece of work in 7& 1/2 hours then B can do it in
options- 5,5&1/2,6,6&1/2
plz solve without using x and y method