TASK DEFINITION: In this task, you need to answer the given multiple-choice question on the gain. Gain is the value by which to multiply the input. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.
PROBLEM: Problem: what is the rate percent when the simple interest on rs . 800 amount to rs . 200 in 4 years ?
Options: a ) 5 % , b ) 7 % , c ) 6.25 % , d ) 2 % , e ) 4 %

SOLUTION: c

PROBLEM: Problem: the calendar of the year 2060 can be used again in the year ?
Options: a ) 2081 , b ) 2083 , c ) 2088 , d ) 1971 , e ) 1973

SOLUTION: c

PROBLEM: Problem: the simple interest and the true discount on a certain sum for a given time and at a given rate are rs . 85 and rs . 78 respectively . the sum is :
Options: a ) 1360 , b ) 1450 , c ) 1600 , d ) 947 , e ) none

SOLUTION:
d