Adam has some stickers
He gives away ¹₃ and an additional 48 stickers to Bryan.
He gives away ³₈ of the remainder and 10 more stickers to Chris
and ³₅ of the rest to David.
Adam has 12 stickers left.
How many stickers does he have at first?
Number of stickers that Adam gives to Bryan = ¹₃ of the total + 48
Number of stickers that Adam gives to Chris = ³₈ of the remainder + 10
Number of stickers that Adam gives to David = ³₅ of the rest
Number of stickers left = 12


Working backwards.
1 - ³₅ = ²₅

²₅ of the rest → 12
¹₅ of the rest → 12 ÷ 2 = 6
⁵₅ of the rest → 5 x 6 = 30

1 - ³₈ = ⁵₈

⁵₈ of the remainder = 10 + 30 = 40
¹₈ of the remainder = 40 ÷ 5 = 8
⁸₈ of the remainder = 8 x 8 = 64

1 - ¹₃ = ²₃
²₃ of the total = 64 + 48 = 112
¹₃ of the total = 112 ÷ 2 = 56
³₃ of the total = 3 x 56 = 168

Number of stickers at first = 168

Answer(s): 168