Problema Solution
Xian and his cousin Kai both collect stamps. Xian has 56 stamps, and Kai has 80 stamps. The boys recently joined stamp collecting clubs. Xians club will send him 12 new stamps per month. Kais club will send him 8 new stamps per month. After how many months will Xian and Kai have the same number of stamps? How many stamps will each have
Answer provided by our tutors
Let 'x' represent the number of months.
56 + 12x = 80 + 8x
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click here to see the equation solved for x
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x = 6 months
Indeed:
56 + 12*6 = 128
80 + 8*4 = 128
After 6 months Xian and Kai will have some number of stamps, 128 stamps each.