Story book A has 23 fewer pages than Story book B, and Story book C has 31 more pages than Story book B. If Story book A and Story book B have a total of 167 pages,
- how many pages does Story book B have?
- how many pages does Story book C have?
(a)
Number of pages that Story book A has = 1 u
Number of pages that Story book B has = 1 u + 23
Number of pages that Story book C has = 1 u + 23 + 31
Total number of pages that Story book A and Story book B have
= 1 u + 1 u + 23
= 2 u + 23
2 u + 23 = 167
2 u = 167 - 23
2 u = 144
1 u = 144 ÷ 2 = 72
Number of pages that Story book B has
= 1 u + 23
= 72 + 23
= 95
(b)
Number of pages that Story book C has
= 1 u + 23 + 31
= 95 + 31
= 126
Answer(s): (a) 95; (b) 126
