EXEKCISB IX

^ Problem, — ^If sugar is sold at 9 cents a pound, or 11% pounds for

$1, what is the per cent, of saving in buying it one dollar^s worth at a time?
lli/o X $.09 = $1.04, the cost of 11% pounds of sugar at 9 cents.
$1.04 — $1. = $.04, the actual saving.
.04 -r- 1.04 = .038, or 3.8 per cent., the per cent, of saving.
