3 years ago in Time and Work

# A, B and C can do a piece of work in 20, 30 and 60 days respectively. In how many days can A do the work if he is assisted by B and C on every third day?

[A] 12 days
[B] 15 days
[C] 16 days
[D] 18 days

Attempted 0
Correct 0
Incorrect 0
Viewed 0

## Related Questions

### Two pipes A and B can fill a tank in 24 min. and 32 min. respectively. If both the pipes are opened simultaneously, after how much time B should be closed so that the tank is full in 18 minutes?

• [A] 12 minutes
• [B] 10 minutes
• [C] 15 minutes
• [D] 6 minutes
• [E] 8 minutes

### A cistern can be filled by two pipes in 20 and 30 minutes respectively. Both pipes being opened, when the first pipe must be turned off so that the cistern may be filled in 10 minutes more.

• [A] after 10 minutes
• [B] after 12 minutes
• [C] after 20 minutes
• [D] after 8minutes

• [A] 35
• [B] 36
• [C] 37
• [D] 38

• [A] 7.5 hr
• [B] 8 hr
• [C] 8.5 hr
• [D] 10 hr

### There is a tank, and two pipes A and B. A can fill tank in 25 minutes and B can empty the tank in 20 minutes. If both the pipes are opened at same time. How much time required the tank can fill?

• [A] 50 minutes
• [B] 60 minutes
• [C] 500 minutes
• [D] 100 minutes
• [E] Tank cannot be filled.