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Question 1:
A sum of Rs.1550 was lent partly at 8% p.a. simple interest. The total interest received after 3 years was Rs.300. The ratio of the money lent at 5% to that lent at 8% is :
A. 16:15
Feedback let the sum lent at 5% be Rs.x and that lent at 8% be Rs.(1550-x). then,Interest on x at 5% for 3 years + interest on (1550-x) at 8% for 3 years = 300
(x*5*3)/100+((1500−x)*8*3)/100=300
x=800
Required ratio = x : (1550-x) = 800 : (1550-800) = 800 : 750 = 16 : 15
(x*5*3)/100+((1500−x)*8*3)/100=300
x=800
Required ratio = x : (1550-x) = 800 : (1550-800) = 800 : 750 = 16 : 15
B. 15:16
C. 6:6
D. 18:19
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