Adam has some stickers
He gives away ¹₃ and an additional 68 stickers to Bryan.
He gives away ¹₆ of the remainder and 10 more stickers to Chris
and ²₅ of the rest to David.
Adam has 3 stickers left.
How many stickers does he have at first?
Number of stickers that Adam gives to Bryan = ¹₃ of the total + 68
Number of stickers that Adam gives to Chris = ¹₆ of the remainder + 10
Number of stickers that Adam gives to David = ²₅ of the rest
Number of stickers left = 3


Working backwards.
1 - ²₅ = ³₅

³₅ of the rest → 3
¹₅ of the rest → 3 ÷ 3 = 1
⁵₅ of the rest → 5 x 1 = 5

1 - ¹₆ = ⁵₆

⁵₆ of the remainder = 10 + 5 = 15
¹₆ of the remainder = 15 ÷ 5 = 3
⁶₆ of the remainder = 6 x 3 = 18

1 - ¹₃ = ²₃
²₃ of the total = 18 + 68 = 86
¹₃ of the total = 86 ÷ 2 = 43
³₃ of the total = 3 x 43 = 129

Number of stickers at first = 129

Answer(s): 129