**Q3. Efficiency of A is 40% more than that of B and ratio of efficiency of C to A is 6:7. Time taken by A and C together to complete the work is 18 days. Find the number of days taken by all of them working together to complete twice of the same work?**

(a) 32 days

(b) 24 days

(c) 25 days

(d) 26 days

(e) 27.5 days

**Q4. Ravi cuts a square field of maximum possible area from his circular field. Find the area of the remaining circular field if the cost of grass cutting of the square field at Rs 4 per mÂ² is Rs 882?**

(a) 120 mÂ²

(b) 126 mÂ²

(c) 121 mÂ²

(d) 116 mÂ²

(e) 109 mÂ²

**Q6. Marked price of an article is Rs 360 more than its cost price. If profit earned is equal to the discount given then find the profit earned?**

(a) Rs 190

(b) Rs 200

(c) Rs 150

(d) Rs 180

(e) Rs 175

**Q8. Difference between CI received in first 1.5 years (compounded annually) at 20% per annum and CI received in last 1.5 years when compounded half yearly at the same rate of interest on the same sum is Rs 715 then find the sum?**

(a) Rs. 66,000

(b) Rs. 65,000

(c) Rs. 64,500

(d) Rs. 65,500

(e) Rs. 67,500

**Q11. â€˜Aâ€™ invested Rs. X on CI and â€˜Bâ€™ invested Rs. Y on SI at the rate of 10% and 20% respectively. A invested for two years and B invested for three years and ratio of interest got by â€˜Aâ€™ for second year and total interest got by B is 1 : 3. Veer invested Rs. (X + Y) on SI for two years on 12% p.a. and gets Rs. 372 as interest. Find (X – Y)?**

(a) Rs. 350

(b) Rs. 450

(c) Rs. 400

(d) Rs. 750

(e) Rs. 800

**Q13. Sum of ages of A and B is 12 years more than twice the age of C and Sum of ages of A & D is twice the age of C. If the average age of B&D is 50 years and average age of all four is also 50 years, then find the difference between the age of A and C?**

(a) 6 years

(b) 1 years

(c) 3 years

(d) 4 years

(e) 2 years

**Q14. Aman divided his total savings between his son and daughter in the ratio of 5 :3. His son invested his share on CI for two years at the rate of 10% and received the interest Rs. 480 less than his sister, who invested her share on SI for three years at the rate of 15% . Find Share of Amanâ€™s son and daughter respectively?**

(a) Rs. 10800, Rs. 2000

(b) Rs. 9600, Rs. 4200

(c) Rs. 8000, Rs. 4800

(d) Rs. 9800, Rs. 3000

(e) Rs. 7000, Rs. 5800

**Q15. P and Q together can complete a work in 24 days, while Q and R working together can complete the same job in 32 days. P and Q started the work and did it for 8 days, after that P left the work and R joined Q and after 12 more days, Q also left the work. Then, the remaining work was completed by R in 28 days. Find in how many days R will complete the work alone?**

(a) 96 days

(b) 72 days

(c) 108 days

(d) 90 days

(e) 81 days

**Solutions**

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