John had 221 stamps less than Jen. Given that they have a total of 641 stamps,
- How many stamps did Jen have?
- How many stamps did John have?
(a)
Number of stamps that Jen had = 1 u
Number of stamps that John had = 1 u - 221
Total number of stamps
= 1 u + 1 u - 221
= 2 u - 221
2 u - 221 = 641
2 u = 641 + 221
2 u = 862
1 u = 862 ÷ 2 = 431
Number of stamps that Jen had
= 1 u
= 431
(b)
Number of stamps that John had
= 1 u - 221
= 431 - 221
= 210
Answer(s): (a) 431; (b) 210
