Find the principal which yields a simple interest of Rs. 20 and compou – McqOptions

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1.	Find the principal which yields a simple interest of Rs. 20 and compound interest of Rs. 21 in two years, at the same percent rate per annum?
A.	Rs. 520
B.	Rs. 480
C.	Rs. 420
D.	Rs. 200
Answer» E.

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