41.  The present worth of a certain sum due sometime hence is Rs.1600 and the true discount is Rs.160. The banker's gain is?

Rs.20
Rs.24
Rs.16
Rs.12

```Answer

Answer: Option  C Explanation:B.G. = (T.D.)^2/P.W. = Rs.(160*160/1600) =Rs.16. ```

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42.  The difference between CI and SI on the same sum for 2 yrs at the rate of 25% pa is Rs.1500. What is the principal lent out in each case?

Rs.24000
Rs.23000
Rs.21000
Rs.18000

```Answer

Answer: Option  A Explanation:P(r/100)2 = 1500
P(25/100) 2 = 1500
P*1/16 = 1500
P = 1500*16 = 24000 ```

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43.  The present worth of a certain bill due sometime hence is Rs.800 and the true discount is Rs.36. The banker's discount is?

Rs.37
Rs.37.62
Rs.34.38
Rs.38.98

```Answer

Answer: Option  B Explanation:B.G =(T.D.)^2/P.W = Rs.(36*36/800) = Rs.1.62
Therefore B.D = (T.D. + B.G.) = Rs.(36 + 1.62) = Rs.37.62 ```

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44.  A man took a certain sum as loan from bank at a rate of 9% SI per annum. The man lends the same amount to another person at 15% SI per annum. If at the end of 4 years man made a profit of Rs. 9000 from the deal. What was the original sum?

Rs.32500
Rs.37500
Rs.39000
Rs.32,700

```Answer

Answer: Option  B Explanation:P*15*4/100 – P*9*4/100 = 9000
60P – 36P/100 = 9000
24P= 900000
P = 37500 ```

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45.  The banker's discount on a bill due 4 months hence at 15% is Rs.420. The true discount is?

Rs.400
Rs.360
Rs.480
Rs.320

```Answer

Answer: Option  A Explanation:T.D = B.D.*100/100+(R*T) = Rs.{420*100/100+(15*1/3)} = Rs.(420*100/105) = Rs.400 ```

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