Subject :IMO Class : Class 7
The simple interest on a sum of money is 4/9
of the principal. Find the rate percent and time, if both are numerically equal.
A 
, 5 years 8 months
B 
, 7 years 8 months
C 
, 6 years 8 months
D 
, 7 years 8 months
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Ans 1:
Class : Class 7