Mary had a fiction book with 320 pages. She read 50% of the fiction book on Thursday, 40% of the fiction book on Friday and the rest on Saturday.
- How many pages did she read on Saturday?
- How many more pages did she read on Thursday than on Saturday?
(a)
100% → 320
1% → 320 ÷ 100 = 3.2
Number of pages that Mary read on Saturday in percent
= 100% - 50% - 40%
= 10%
Number of pages that Mary read on Saturday
= 10 x 3.2
= 32
(b)
Number of more pages that Mary read on Thursday than on Saturday in percent
= 50% - 10%
= 40%
40% → 40 x 3.2 = 128
Number of more pages that Mary read on Thursday than on Saturday = 128
Answer(s): (a) 32; (b) 128