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