Barbara had a textbook with 240 pages. She read 50% of the textbook on Friday, 40% of the textbook on Saturday and the rest on Sunday.
- How many pages did she read on Sunday?
- How many more pages did she read on Friday than on Sunday?
(a)
100% → 240
1% → 240 ÷ 100 = 2.4
Number of pages that Barbara read on Sunday in percent
= 100% - 50% - 40%
= 10%
Number of pages that Barbara read on Sunday
= 10 x 2.4
= 24
(b)
Number of more pages that Barbara read on Friday than on Sunday in percent
= 50% - 10%
= 40%
40% → 40 x 2.4 = 96
Number of more pages that Barbara read on Friday than on Sunday = 96
Answer(s): (a) 24; (b) 96