Brandon had
110 as many stamps as Seth. Seth had twice as many stamps as Riordan. If Brandon had 156 stamps fewer than Riordan,
- how many stamps did Brandon have?
- how many stamps did they have altogether?
(a)
Number of stamps that Brandon had = 1 u
Number of stamps that Seth had = 10 u
Number of stamps that Riordan had = 10 u ÷ 2 = 5 u
Number of stamps that Brandon had fewer than Riordan
= 5 u - 1 u
= 4 u
4 u = 156
1 u = 156 ÷ 4 = 39
Number of stamps that Brandon had
= 1 u
= 39
(b)
Total number of stamps that they had
= 1 u + 10 u + 5 u
= 16 u
= 16 x 39
= 624
Answer(s): (a) 39; (b) 624
