It takes Mr. Karthik ‘y’ hours to complete typing a manuscript. After 2 hours, he was called away. What fractional part of the assignment was left incomplete?

Vimal can do a piece of work in 20 days, Vimal and Kamal together can do in 12 days. If Kamal does the work only for half a day daily then in how many days the work will be completed ?

• [A] 14
• [B] 17
• [C] 12
• [D] 15

A group of 12 men can do a piece of work in 14 days and other group of 12 women can do the same work in 21 days. They begin together but 3 days before the completion of work, man's group leaves off. The total number of days to complete the work is:

• [A] 65/4
• [B] 93/3
• [C] 51/5
• [D] 60

If 8 men 8 hrs per day work for 8 days get 45/- then how many men required if the work is 5 hrs per day for 10 days they get 60/-?

• [A] 13
• [B] 15
• [C] 12
• [D] 14
• [E] 20

Two pipes, P and Q can fill a cistern in 12 and 15 minutes respectively. Both are opened together, but at the end of 3 minutes, P is turned off. In how many more minutes will q fill the cistern?

• [A] 7
• [B] 7(1/2)
• [C] 8
• [D] 8(1/4)

Pipe A can fill a tank in 30 mins and Pipe B can fill it in 28 mins. If 3/4th of the tank is filled by Pipe B alone and then both are opened, how much more time is required by both the pipes to fill the tank completely?

• [A] 3 min
• [B] 3.5 min
• [C] 4.7 min
• [D] 3.62 min
• [E] None of these