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Q.

Find the difference between the compound interest and simple interest. On a sum of Rs. 50,000 at 10%  per annum for 2 years.

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a

   Rs.500.

b

   Rs.400.

c

   Rs.700.

d

   Rs.570. 

answer is A.

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Detailed Solution

Given,
Principal (P)=Rs 50000 Rate (R)=10 %  p.a. Time (T)=2 years   The formula to calculate the amount is given by A=P 1+ R 100 n                            (1)  
Substitute the given value in equation (1) and solve for amount A, A=50000 1+ 10 100 2 A=50000 110 100 2 A=Rs 60500  
Evaluate the compound interest C.I.,
  C.I.=AP C.I.=6050050000 C.I.=Rs 10500  
Find the simple interest,
S.I.= PRT 100 S.I.= 50000×10×2 100 S.I.=Rs 10000  
Calculate the difference amount between C.I. and S.I.,
  C.I.S.I.=1050010000 C.I.S.I.=Rs 500  
Hence, the difference amount between C.I. and S.I is Rs 500.
Hence, the correct option is 1.
 
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