Question

Tom has a collection of 30 CDs and Nita has a collection of 18 CDs. Tom is adding 1 CD a month to his collection while Nita is adding 5 CDs a month to her collection.Find the number of months after which they will have the same number of CDs.

a. 3 months
b. 1 month
c. 2 months
d. 33 months

Answer 1

a) 3 Meses.

Começo-> 30--18
1 mês-> 31--23
2 meses-> 32--28
3 meses-> 33--33

Espero ter ajudado :)