Natalie spent ³₈ of her money on 4 post-it pads and 10 correction tapes. The cost of one correction tape was twice the cost of one post-it pad. She bought some more correction tapes with ¹₄ of her remaining money. How many correction tapes did Natalie buy altogether?

4 post-it pads and 10 correction tapes	Remaining amount
3x4	5x4
	More correction tapes	Left
	1x5	3x5
12 p	5 p	15 p

Cost of 1 post-it pad = 1 u
Cost of 1 correction tape = 2 u

Cost of 4 post-it pads = 4 x 1 u = 4 u
Cost of 10 correction tapes = 10 x 2 u = 20 u

Total cost of 4 post-it pads and 10 correction tapes
= 4 u + 20 u
= 24 u

12 p = 24 u

1 p = 24 ÷ 12 = 2 u

Amount that Natalie used to buy more correction tapes
= 5 p
= 5 x 2 u
= 10 u

Number of more correction tapes that Natalie bought
= 10 u ÷ 2 u
= 5

Total number of correction tapes that Natalie bought
= 10 + 5
= 15

Answer(s): 15