**1. The ratio of efficiency of A is to C is 5 : 3. The ratio of number of days taken by B is to C is 2 : 3, A takes 6 days less than C, when A & C completes the work individually. B and C started the work and left after 2 days. The number of days taken by A to finish the remaining work ?**

(a) 5

(b) 6

(c) 4.5

(d) 9.3

(e) None

**2. A contractor employed 30 men to complete the project in 100 days. But later on he realized that just after 25 days only 20% of the work had been completed.**

**If the amount of work is also increased by 20% of the actual work, then how many extra days are required (in companion with scheduled time) but the number of men remained constant.**

(a) 50

(b) 60

(c) 45

(d) 55

(e) 30

**Directions (3-7): A set of 10 pipes (set X) can fill 70% of a tank in 7minutes. Another set of 5 pipes (set Y) fills 3/8 of the tank in 3 minutes. A third set of 8 pipes (Set Z) can empty 5/10 of the tank in 10 minutes.**

**3. How many minutes will it take to fill the tank if all the 23 pipes are opened at the same time?**

(a) 5 minutes

(b) 5 (5/7) minutes

(c) 6 minutes

(d) 6 (5/7) minutes

(e) None

**4. If only half the pipes of set X are closed and only half the pipes of set Y are open and all other pipes are open, how long will it take to fill 49% of the tank?**

(a) 16 minutes

(b) 13 minutes

(c) 7 minutes

(d) None of these

(e) can’t be determine

**5. If 4 pipes are closed in set Z, and all others remain open, how long will it take to fill the tank?**

(a) 5 minutes

(b) 6 minutes

(c) 7 minutes

(d) 7.5 minutes

(e) 5.4 minutes

**6. If the tank is half full and set X and set Y are closed, how many minutes will it take for set Z to empty the tank if alternate taps of set Z are closed.**

(a) 12 minutes

(b) 20 minutes

(c) 40 minutes

(d) 16 minutes

(e) 32 minutes

**7. If one pipe is added for set X and set Y and set Z’s capacity is increased by 20% on its original value and all the taps are opened at 2.58 p.m., then at what time does the tank get filled? (If it is initially empty.)**

(a) 3.05 p.m. (b) 3.04 p.m.

(c) 3.10 p.m. (d) 3.03 p.m.

(e) None

**8. Three cooks have to make 80 idlis. They are known to make 20 pieces every minute working together. The first cook began working alone and made 20 pieces having worked for sometime more than three minutes. The remaining part of the work was done by the second and the third cook working together. They all took a total of 8 minutes to complete the 80 idlis. How many minutes would it take the first cook alone to cook 160 idlis for a marriage party the next day?**

(a) 16 minutes

(b) 24 minutes

(c) 32 minutes

(d) 40 minutes

(e) None

**9. When A, B and C are deployed for a task, A and B together do 70% of the work and B and C together do 50% of the work. Who is most efficient?**

(a) A

(b) B

(c) C

(d) Can’t be determined

(e) None

**10. Colonel, Major and General started a work together for Rs. 816. Colonel and Major did 8/17 of the total work, while Major and General together did 12/17 of the whole work. What is the amount of the least efficient person?**

(a) Rs. 256

(b) Rs. 144

(c) Rs. 85

(d) can’t be determined

(e) None

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