p+n = 250
p+30 = 2/3 n
solve for p:
p + 3/2 (p+30) = 250
p = 82
check:
Nordin had 250-82 = 168
82+30 = 112 = 2/3 * 168 ✅
Paul and Nordin had a total of 250 stamps at first. After Paul bought another 50 stamps and Nordin gave away 1/3 of his stamps, both boys had the same number of stamps left. How many stamps did Paul have at first?
1 answer