to complete a work A takes 4 days more than A and b working together also A takes 5 days more than A and C working together|
the ratio of B and C is 2:3,then how many days A will take to complete the work?????
my approach to this problem as follows
W/A+B + 4 = W/A
w/A+C + 5 = w/A
now substituting the values of b and c as 2and 3 respectively
we will get 2 equations
on solving these we get
now for A is 3 we already have the ratio of work of a and b as 2:3
for easier calculation let w=30
now A can do the work in 10 days
it satisfies the condition A takes 4 days more than A and B together and 5 days more than A and c together
is this approach and the answer is right?
please kindly respond to this