Guide book Q has 23 fewer pages than Guide book R, and Guide book S has 34 more pages than Guide book R. If Guide book Q and Guide book R have a total of 203 pages,
- how many pages does Guide book R have?
- how many pages does Guide book S have?
(a)
Number of pages that Guide book Q has = 1 u
Number of pages that Guide book R has = 1 u + 23
Number of pages that Guide book S has = 1 u + 23 + 34
Total number of pages that Guide book Q and Guide book R have
= 1 u + 1 u + 23
= 2 u + 23
2 u + 23 = 203
2 u = 203 - 23
2 u = 180
1 u = 180 ÷ 2 = 90
Number of pages that Guide book R has
= 1 u + 23
= 90 + 23
= 113
(b)
Number of pages that Guide book S has
= 1 u + 23 + 34
= 113 + 34
= 147
Answer(s): (a) 113; (b) 147
