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Miko and Cheko each had an equal number of stamps. On Cheko's birthday, Miko gave Cheko 31 stamps. After receiving the stamps from Miko, Cheko had 3 times as many stamps as Miko. How many stamps had Cheko in the end?

 Feb 29, 2020
 #1
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Let n = initial number of stamps

 

We are told:   n + 31 = 3*(n - 31)

 

I'll leave you to determine n from this and hence the number, (n + 31), that Cheko ended up with.

 Feb 29, 2020

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