Question

There are 600pages of a novel. 1st day rui reads 150 pages next day he reads 40% of the remaining pages. Express the number of pages that remain to be read as a percentage of the total number of pages in the novel

Answer 1

first day read 600-150=450
next day he reads 40 of remaining pages
pages read=40%450
40/100*450
180
pages left to read =600-180=420
%age=420/600*100=70%

Answer 2

This is my answer.
Hope it helps!