Adam has some stickers
He gives away ¹₃ and an additional 19 stickers to Bryan.
He gives away ⁴₇ of the remainder and 25 more stickers to Chris
and ²₇ of the rest to David.
Adam has 10 stickers left.
How many stickers does he have at first?
Number of stickers that Adam gives to Bryan = ¹₃ of the total + 19
Number of stickers that Adam gives to Chris = ⁴₇ of the remainder + 25
Number of stickers that Adam gives to David = ²₇ of the rest
Number of stickers left = 10


Working backwards.
1 - ²₇ = ⁵₇

⁵₇ of the rest → 10
¹₇ of the rest → 10 ÷ 5 = 2
⁷₇ of the rest → 7 x 2 = 14

1 - ⁴₇ = ³₇

³₇ of the remainder = 25 + 14 = 39
¹₇ of the remainder = 39 ÷ 3 = 13
⁷₇ of the remainder = 7 x 13 = 91

1 - ¹₃ = ²₃
²₃ of the total = 91 + 19 = 110
¹₃ of the total = 110 ÷ 2 = 55
³₃ of the total = 3 x 55 = 165

Number of stickers at first = 165

Answer(s): 165