on increasing the number of lines in a page by 80 , they become 240 . what is the % of increase in the no . of lines in the page ?
explanation : number of pages increased = 80 now , the number of pages of book = 240 number of pages of the books before increase = 240 – 80 = 160 % increase in the number of pages in the book = 80 160 x 100 % = 50 % c
subtract(multiply(divide(240, subtract(240, 80)), const_100), const_100)