exam2.3.2

;; mht created on Nov 8, 2011

;; sum-coins : number number number number -> number
;; to compute the value of a bag of coins
(define (sum-coins n-1 n-5 n-10 n-25)
  (/
   (+ (* 1 n-1) (* 5 n-5) (* 10 n-10) (* 25 n-25))
   100))

(sum-coins 100 20 10 4)