a number increased by 10 % gives 660 . the number is ?
"formula = total = 100 % , increase = ` ` + ' ' decrease = ` ` - ' ' a number means = 100 % that same number increased by 10 % = 110 % 110 % - - - - - - - > 660 ( 110 ã — 6 = 660 ) 100 % - - - - - - - > 600 ( 100 ã — 6 = 600 ) option ' d '"
divide(660, add(const_1, divide(10, const_100)))