in a college , the ratio of the number of boys to girls is 8 : 5 . if there are 160 girls , the total number of students in the college is
"explanation : let the number of boys and girls be 8 x and 5 x . total number of students = 13 x = 13 * 32 = 416 . answer : d"
add(160, multiply(divide(160, 5), 8))