• Rs. 150
• Rs. 300
• Rs. 600
• Rs. 400

• 60,000
• 6,000
• 66,000
• 6,600

• 10,000
• 12,000
• 20,000
• 24,000

• 1500
• 1600
• 1568
• 1750

• 100/y
• 100 × y
• 100 × y2
• 100/y2
• #### 6.  The rate of simple interest per annum at which a sum of money doubles itself in 16⅔ years is:

• 4%
• 5%
• 6%
• $$6\frac{2}{3}\%$$

• 8.16%
• 9%
• 7%
• 10%

• Rs. 367.2
• Rs. 4,867.2
• Rs. 4,876.2
• Rs. 376.2

• Rs. 600
• Rs. 1,050
• Rs. 500
• Rs. 450

• Rs. 50
• Rs. 1250
• Rs. 1320.50
• Rs. 1885.50

• Rs. 20,000
• Rs. 10,000
• Rs. 12,000
• Rs. 26,000

• 5.5
• 6
• 8
• 7
• #### 13.  In how many years will a sum of Rs. 4,000 yield a simple interest of Rs. 1,440 at 12% per annum?

• 3
• $$2\frac{1}{2}$$
• 2
• $$3\frac{1}{2}$$

• Rs 2460
• Rs 4160
• Rs 3140
• Rs 4320

• 20
• 100
• 80
• 8

• 1 ∶ 2
• 2 ∶ 3
• 3 ∶ 4
• 4 ∶ 5

• 180 months
• 120 months
• 60 months
• 30 months

• 1st
• 2nd
• 3rd
• 4th

• Rs. 400
• Rs. 450
• Rs. 460
• Rs. 480

• Rs. 1989.80
• Rs. 1795.98
• Rs. 1979.76
• Rs. 1900.72

• 9,000
• 9,833.40
• 10,123.20
• 10,678.90

• 20
• 15
• 10
• 12

• Rs. 50,000
• Rs. 40,000
• Rs. 12,000
• Rs. 20,000

• 7%
• 8%
• 9%

• Rs. 1982.18
• Rs. 1982.93
• Rs. 1933.25
• Rs. 1983.36

• Rs. 5200
• Rs. 5400
• Rs. 5600
• Rs. 5800
• #### 27.  In what time will Rs. 72 become Rs. 81 at $$6\frac{1}{4}\%$$ per annum simple interest?

• 2 years
• 3 years
• 2 years 6 months
• 4 years

• Rs. 600
• Rs. 620
• Rs. 625
• Rs. 630

• 3
• 4
• 2
• 1

• 40 years
• 30 years
• 25 years
• 20 years
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