**31. In a fort there is enough food sufficient for 1200 men for 10 days. How long the food would have last for if there would have been 1000 men.**

A. 15

**B. 12**

C. 10

D. 20

**32. The marked price of a watch was Rs. 720. A man bought the same for Rs. 550.80, after getting two successive discounts, the first 10%. What was the second discount rate ?**

A. 12%

B. 14%

**C. 15%**

D. 18%

**33. A shopkeeper marks his goods 20% above cost price, but allows 30% discount for cash payment. His net loss is ?**

A. 8%

B. 10%

**C. 16%**

D. 20%

**34. A tradesman marks his goods 10% above his cost price. If he allows his customers 10% discount on the marked price. How much profit or loss does he make, if any ?**

A. 1% gain

**B. 1% loss**

C. 5% gain

D. No gain no loss

**35. If the true discount on s sum due 2 years hence at 14% per annum be Rs. 168, the sum due is:________?**

**A. Rs. 768**

B. Rs. 968

C. Rs. 1960

D. Rs. 2400

**36. Rs. 20 is the true discount on Rs. 260 due after a certain time. What will be the true discount on the same sum due after half of the former time, the rate of interest being the same?**

A. Rs. 10

**B. Rs. 10.40**

C. Rs. 15.20

D. Rs. 13

**37. The interest on Rs. 750 for 2 years is the same as the true discount on Rs. 960 due 2 years hence. If the rate of interest is the same in both cases, it is:**

A. 12%

**B. 14%**

C. 15%

D. 16%

**38. A shopkeeper earns a profit of 10% after allowing a discount of 20% on the marked price. The cost price of the article whose marked price is Rs. 880, is =_______ ?**

A. Rs. 704

B. Rs. 640

**C. Rs. 774**

D. Rs. 680

**39. The present worth of Rs. 1404 due in two equal half-yearly installments at 8% per annul simple interest is:**

**A. Rs. 1325**

B. Rs. 1300

C. Rs. 1350

D. Rs. 1500

**40. The simple interest and the true discount on a certain sum for a given time and at a given rate are Rs. 85 and Rs. 80 respectively. The sum is:_______?**

A. Rs. 1800

B. Rs. 1450

**C. Rs. 1360**

D. Rs. 6800