1 .
Mr Nair's monthly salary is Rs. 22,500. He took a loan of Rs. 30,000 on simple interest for 3 years at the rate of 5 p.c.p.a. The amount that he will be paying as simple interest in 3 years is what percent of his monthly salary?
[ A ]    10
[ B ]    18
[ C ]    20
[ D ]    25
[ E ]    none of these
 Answer : Option C Explanation :
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