Lee had some stickers. He gave ⁶₇ of his stickers to Perry and bought 4 new stickers. After that, he gave ²₅ of his remaining stickers to his brother and bought another 7 new stickers. In the end, Lee had 25 stickers.

1. How many stickers did Lee give to his brother?
2. How many stickers did Lee have at first?

(a)
Fraction of  his remaining stickers after he gave to his brother
= 1 - ²₅
= ³₅

³₅ of his remaining stickers = 25 - 7 = 18
¹₅ of his remaining stickers = 18 ÷ 3 = 6
²₅ of his remaining stickers = 2 x 6 = 12

Number of stickers that Lee gave to his brother = 12

(b)
⁵₅ of his remaining stickers = 5 x 6 = 30

Fraction of his total stickers after he gave to Perry
= 1 - ⁶₇
= ¹₇

¹₇ of his total stickers = 30 - 4 = 26
⁷₇ of his total stickers = 7 x 26 = 182

Number of stickers that Lee had at first = 182 

Answer(s): (a) 12; (b) 182