on increasing the number of lines in a page by 60 , they become 240 . what is the % of increase in the no . of lines in the page ?
"explanation : number of pages increased = 60 now , the number of pages of book = 240 number of pages of the books before increase = 240 – 60 = 180 % increase in the number of pages in the book = 60 / 180 x 100 % = 33.3 % a"
subtract(multiply(divide(240, subtract(240, 60)), const_100), const_100)