Carol can type 5 pages of an essay in 23 minutes. She claims she can type 10 pages in less than half an hour. She supports her claim by saying 5 + 5 = 10 and 23+5 = 28. She also claims that 28 minutes is less than half an hour.
Which statement best explains whether Carol's claim is correct and why?
Carol's claim is incorrect. Because 10 pages is twice as much as 5 pages, it will take her twice as long to type. It
will take her 46 minutes to type 10 pages.
Carol's claim is incorrect. To find out how long it will take her to type 10 pages, she should add 23 + 10, which is
more than half an hour
Carol's claim is incorrect. It will take her 28 minutes to type 10 pages, but 28 minutes is not less than half an
hour
Carol's claim is correct. She is adding 5 pages to what she is typing, so she needs to add 5 minutes to her time
too