For how many years Rs. 240 be invested at 10% per year in S.I., in order to earn the same interest as earned by investing Rs. 400 at 6% per year for 5 years in S.I.? 
							Options
 - 6 years
 - 5 years
 - 3 years
 - 7 years
							CORRECT ANSWER :   5 years 
                            
                            
			        
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