A and B can complete a work in 12 days. B and C can complete the same work in 18 days. C and A can complete in 24 days. How many days will take for A, B and C combined together to complete the same amount of work?
1/a+1/b = 1/12 1/b+1/c = 1/18 1/c+1/a = 1/24
so 2(1/a+1/b+1/c) = (6+4+3)/72 or 1/a+1/b+1/c = 13/(2*72)
or A , B and C together can finish in 144/13 or 11.1 days.
a+b=12 b+c=18 c+a=24 a+b+c=(12+18+24)/2 = 27
B is more efficient than A and they together can complete a work in 18 days. Had A done 60% of the work and then B, the remaining work, then the work would have been completed in 39 days. B alone will complete 60% of the same work in how many days?
A, B and C together can complete a certain work in 24 days. A and C together work twice as much as B while A and B together works four times the as much as C, then A alone can do the same work in how many days?
P is able to do a piece of work in 15 days and Q can do the same work in 10 days. If they can work together for 2 days, what is the fraction of work left?
B alone can complete the work in 45 days. A is 35% more efficient than B. If A and B together started the work but after 18 days A and B left. Then C alone completed the remaining work in 3 days. If they get Rs. 9750 as wages for the whole work, then what is the share of C in wages for the remaining work?
10 men and 15 women complete half of the work in 12 days and 6 men and 15 women complete one third of the work in 10 days. How many days are required to complete the same full work by taking 10 men and 30 women?
