Question

7.
Two taps can fill a tank in 5 hours and 10 hours respectively. A third tap at the bottom the
empty it in 20 hours. If all of them are opened together, how long will it take to fill the tank
B/ A, B and C together can complete a work in 15 days. Calone can do it in 120 days and A alone ca
3. A can do a work in 6 days, B in 10 days and C in 15 days. A and B work for 3 days. How long wil
do it in 30 days. In how many days will B alone do the work ?
it take B and C to finish the work ? and AG
Pand Q can together finish a work in 30 days. They worked at it for 20 days and then Q left. m
remaining work was done by P alone in 20 more days. In how many days can P alone do it?
A and B can do a piece of work in 40 days; B and C in 30 days; C and A in 24 days.
(i) How long will it take them to do the work together?
(ii) In what time can each do it, working alone ?
A and B together can complete a work in 14 days. B is twice as good a workman as A. In hom
many days can B alone do it?
If 4 boys or 6 girls can do a work in 40 days. How many days will 4 boys and 14 girls take to do
the same work?
1
1
A can complete of a work in 6 days and B can complete of the same work in 6 days. Find
2
4
(i) in how many days both working together can complete the work.
(ii) the portion of the work done by each.
(iii) the share of A if both started working together and after completing the work B gets 840.
A can comnlete a nroiect in 20 days and B in 16 days. They worked together for 5 days and then​

Answer 1

Step-by-step explanation:

Answer

(

10

1

+

8

1

−

15

1

)×t=1

120

12+15−8

×t=1

120

19

×t=1

t=

19

120