**1. 3 men and 18 children together take 2 days to complete a piece of work. How many days will 18 children alone take to complete the piece of work, if 6 men alone can complete the piece of work in 3 days?**

(a) 9

(b) 7

(c) 6

(d) 3

**2. Aarush, Birju and Carol can do a piece of work in 10, 20 and 30 days, respectively. They all begin together. Aarush work continuously till it is finished, Carol leaves the work 2 days before its completion and Birju leaves the work 1 day before its completion. In what appx. time is the work finished?**

(a) 10 days

(b) 4 days

(c) 5 days

(d) 7 days

**3. Total wages of 3 men, 2 women and 4 boys is Rs. 26. If the wages of 3 men is equal to that of 4 women and the wages of 2 women is equal to that of 3 boys, then find out the total wages of 6 men, 8 women and 2 boys?**

(a) Rs. 52

(b) Rs. 42

(c) Rs. 65

(d) Rs. 40

**4. A person was appointed for a 50 days job on a condition that he will be paid Rs. 12 for every working day but he will be fined Rs. 6 for every day he remains absent. After the completion of the work, he got Rs. 510. For how many days, he worked?**

(a) 15 days

(b) 45 days

(c) 30 days

(d) 20 days

**5. Total wages for a work is Rs. 1280. A alone can do a piece of work in 8 days, while B alone can do it in 12 days. If A and B work on alternate days, then find the share of B?**

(a) Rs. 840

(b) Rs. 580

(c) Rs. 480

(d) Rs. 740

**6. A tap having diameter ‘d’ can empty a tank in 80 min. How long another tap having diameter ‘2d’ take to empty the same tank?**

(a) 5 min

(b) 20 min

(c) 10 min

(d) 40 min

**7. Two pipes A and B can fill a cistern in 15 and 20 min, respectively. Both the pipes are opened together, but after 2 min, pipe A is turned off. What is the total time required by B to fill remaining part of tank?**

(a) 46/3 min

(b) 56/3 min

(c) 43/3 min

(d) 47/3 min

**8. A cistern has three pipes X, Y and Z. Pipes X and Y can fill it in 3 and 4 h, respectively, while pipe Z can empty the completely filled cistern in 1 h. If the pipes are opened in order at 1:00 pm, 2:00 pm and 3:00 pm, respectively, at what time will the cistern be empty?**

(a) 6 : 15 pm

(b) 5 : 12 pm

(c) 8 : 12 pm

(d) 6 : 35 pm

**9. Three pipes A, B and C can fill a tank in 30 min, 20 min and 10 min, respectively. When the tank is empty, all the three pipes are opened. If A, B and C discharge chemical solutions X, Y and Z respectively, then the part of solution Y in the liquid in the tank after 3 min is?**

(a) 9/11

(b) 5/11

(c) 4/11

(d) 7/11

**10. Taps A, B and C are attached with a tank and velocities of water coming through them are 45 L/h, 52 L/h and 47 L/h, respectively. A and B are inlets and C is outlet. If all the taps are opened simultaneously, tank is filled in 1 day. What is the capacity of the tank?**

(a) 1000 L

(b) 1600 L

(c) 800 L

(d) 1200 L

(e) 1400 L