A man borrowed Rs. 800 at 10% per annum simple interest and immediately lent the whole sum at 10% per annum compound interest. What does he gain at the end of 2 years ?

a. Rs. 6
b. Rs. 8
c. Rs. 10
d. Rs. 12

• S.I FOR RS.800 FR 2 YEARS IS RS.160, WHEREAS AMOUNT IS 168 RS. HENCE GAIN IS 168-160=8
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