Story book B has 81 fewer pages than Story book C, and Story book D has 28 more pages than Story book C. If Story book B and Story book C have a total of 249 pages,
- how many pages does Story book C have?
- how many pages does Story book D have?
(a)
Number of pages that Story book B has = 1 u
Number of pages that Story book C has = 1 u + 81
Number of pages that Story book D has = 1 u + 81 + 28
Total number of pages that Story book B and Story book C have
= 1 u + 1 u + 81
= 2 u + 81
2 u + 81 = 249
2 u = 249 - 81
2 u = 168
1 u = 168 ÷ 2 = 84
Number of pages that Story book C has
= 1 u + 81
= 84 + 81
= 165
(b)
Number of pages that Story book D has
= 1 u + 81 + 28
= 165 + 28
= 193
Answer(s): (a) 165; (b) 193