Linda had been collecting stamps for 5 weeks and had 25 stamps in her stamp book. Her book holds 64 stamps. She then began purchasing 3 stamps each week. What was the total number of weeks that it took Linda to fill her stamp book?

____ Weeks

Question

Linda had been collecting stamps for 5 weeks and had 25 stamps in her stamp book. Her book holds 64 stamps. She then began purchasing 3 stamps each week. What was the total number of weeks that it took Linda to fill her stamp book?

____ Weeks

anonymous · Answer

@Ogzii

anonymous · Answer

she had 25 stamps in her stamps  book  , in 5 weeks , after than she began to buy 3 stamps each weak , that means 64 - 25 ( that she had ) = 39 
that means 39 stamps left 
if she will buy 3 each week , she will need for 13 week to fill it all 
so 5 weeks ( 25 stamps ) + 13 weeks ( 39 stamp ) 
the final answer is 18 weeks , i hope that s helpful