What is the present worth of Rs. 198 due in 2 years at 5% simple interest per annum?
Options:
A) 128
B) 277
C) 180
D) 888
E) 171
Let the present worth be Rs. x. Then,   S.I. = (198 - x)   (x * 5 * 2) / 100 = (198 - x)   10x = 19800 - 100x   110x = 19800 =&gt; x = 180.   Answer: 180
<result>C</result>
What is the present worth of Rs. 198 due in 2 years at 5% simple interest per annum?