**Q1. If efficiency of B increased by 33⅓% and A & B start work together, while at the same time C starts destroying the work. Find in how many days work will be completed?**

(a) 36 days

(b) 48 days

(c) 32 days

(d) 28 days

(e) 30 days

**Q2. If A worked for first x days, B & C worked for next (x + 2) days and remaining work complete by A in (x -9.5) days. Find what portion of work will be completed, if A & C work together for (X + 6) days?**

(a) 53/72

(b) 49/72

(c) 47/72

(d) 58/72

(e) 55/72

**Directions (3-4): Pipe A can fill a tank in 12 minutes and ratio of efficiency of pipe B to pipe C is 8 : 9. Pipe A and C together will fill 2 liters/minute more water in tank than that of pipe A and B together. Time taken by pipe B and C together to fill the same tank is 4(4/17) minutes.**

**Q4. If all three pipes are opened for 2 minutes to fill the tank each alternatively in the sequence of A then C and then B. Calculate water filled by pipe A is what % of water filled by Pipe C.**

(a) 72.5%

(b) 75%

(c) 77.5%

(d) 80%

(e) 82.5%

**Directions (5-6): A is twice efficient than B and B take 8 more days than C to complete a work. A took the contract to complete the same work in 6 days. 2 days later, he realized that he alone could only complete 60% work in given time period. So, he asked for help, B and C joined him for last 3 days and the work was completed on time.**

**Q5. Find the number of days taken by B and C to complete the same work.**

(a) 7 days

(b) 7.5 days

(c) 12 days

(d) 16 days

(e) 8 days

**Directions (7-8): X and Y working together on a work ‘S’ such that their total working efficiency decreases by 10% every day from the previous day and they completed the work in 5 days. Ratio of the efficiency of the X and Y is 4 : 5.**

**Q7. If Z can complete the same work in 9 days (with same efficiency) then find the efficiency of Z is what percent of that of efficiency of Y on first day?**

(a) 78.12%

(b) 81.902%

(d) 104.02%

(d) 65.123%

(e) 102.56%

**Q9. Rs.15000 invested in two schemes each. First scheme offers R% interest on C.I. and second scheme offer R% more of what he gets in first at S.I. If after 2-year difference between interests earned in both scheme is Rs. 600 then find the value of R.**

(a) 24%

(b) 10%

(c) 15%

(d) 20%

(e) None of these

**Q10. Ram spends Rs. 8000 for 4 years in scheme ‘A’ which offers R% p.a. at S.I. and Rs. 10,000 for 2 years in scheme ‘B’ which offers R% p.a. at C.I. He got same amount from both schemes. Find value of ‘R’.**

I. 20%

II. 50%

III. 100%

(a) Either I or II

(b) Either I or III

(c) Either II or III

(d) Any one of I, II and III

(e) Only I

**Q11. Work done by A, B, C and D is in arithmetic progression. C worked for 9 days and completed 30% work. A and B worked for 2 days and 3 days only. Find for how many days ‘D’ work to complete the remaining work if all four together can complete that work in 4 days.**

(a) 12 days

(b) 10 days

(c) 8 days

(d) 6 days

(e) 4 days

**Directions (12-13): Pipe A is 33 ⅓% more efficient than pipe B. Pipe C can empty the tank at rate 40 litre/hour. **

**Q12. Mohit opened pipe A and pipe B for 13/7 hours and the tank was filled upto10 liters less than 75% of its capacity. After that he also opened the pipe C and tank was filled in 1 hour. Find the time in which pipe C alone could empty the tank.**

(a) 8 hours

(b) 9 hours

(c) 9.5 hours

(d) 8.5 hours

(e) Can’t be determined

**Q13. When these pipes were connected to a different tank. Initially, pipe A and B were opened, till the tank was filled 10 liters more water than 75% capacity of tank. After that all the pipes were opened, and the remaining tank was filled in 1 hour. Find the capacity of tank. Given that pipe A will take 4 hours to fill the tank.**

(a) 600 litres

(b) 160 litres

(c) 360 litres

(d) 180 litres

(e) can’t be determined

**Q14. Interest earned by Ramesh on Rs 10000 for 2 years at R% p.a. simple interest is how much more/less than interest earned by him on Rs 8000 for 2 years at (R+10)% p.a. compounding annually. If Rs 2000 is invested at 2R% p.a. simple interest for a year, then it would fetch an interest of Rs 400.**

(a) Rs 1220

(b) Rs 1000

(c) Rs 1520

(d) Rs 930

(e) Rs 1140

**Q15. Aman invested Rs.18000 at 21% p.a. compounding annually for 1 year and Rs.15000 at 16% p.a. compounding semi-annually for 1 year. Bhanu invested Rs.P at 12% p.a. for 1 year. If interest received by both Bhanu and Aman is same, then find P.**

(a) Rs.55,800

(b) Rs.52,300

(c) Rs.54,500

(d) Rs.51,700

(e) Rs.53,600

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