sushil got thrice as many marks in english as in science . his total marks in english , science and maths are 115 . if the ratio of his marks in english and maths is 5 : 1 , find his marks in science ?
"s : e = 1 : 3 e : m = 5 : 1 - - - - - - - - - - - - s : e : m = 5 : 15 : 3 5 / 23 * 115 = 25 answer : c"
add(add(add(multiply(5, const_3), 5), multiply(multiply(5, const_3), add(multiply(5, const_3), 5))), 5)