in an examination 35 % of the students passed and 260 failed . how many students appeared for the examination ?
"let the number of students appeared be x then , 65 % of x = 260 65 x / 100 = 260 x = 260 * 100 / 65 = 400 answer is b"
divide(multiply(260, const_100), subtract(const_100, 35))