Opal had a guide book with 390 pages. She read 35% of the guide book on Wednesday, 35% of the guide book on Thursday and the rest on Friday.
- How many pages did she read on Friday?
- How many more pages did she read on Wednesday than on Friday?
(a)
100% → 390
1% → 390 ÷ 100 = 3.9
Number of pages that Opal read on Friday in percent
= 100% - 35% - 35%
= 30%
Number of pages that Opal read on Friday
= 30 x 3.9
= 117
(b)
Number of more pages that Opal read on Wednesday than on Friday in percent
= 35% - 30%
= 5%
5% → 5 x 3.9 = 19.5
Number of more pages that Opal read on Wednesday than on Friday = 19.5
Answer(s): (a) 117; (b) 19.5