Adam has some stickers
He gives away ¹₅ and an additional 99 stickers to Bryan.
He gives away ⁴₇ of the remainder and 20 more stickers to Chris
and ³₅ 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 = ¹₅ of the total + 99
Number of stickers that Adam gives to Chris = ⁴₇ of the remainder + 20
Number of stickers that Adam gives to David = ³₅ of the rest
Number of stickers left = 10


Working backwards.
1 - ³₅ = ²₅

²₅ of the rest → 10
¹₅ of the rest → 10 ÷ 2 = 5
⁵₅ of the rest → 5 x 5 = 25

1 - ⁴₇ = ³₇

³₇ of the remainder = 20 + 25 = 45
¹₇ of the remainder = 45 ÷ 3 = 15
⁷₇ of the remainder = 7 x 15 = 105

1 - ¹₅ = ⁴₅
⁴₅ of the total = 105 + 99 = 204
¹₅ of the total = 204 ÷ 4 = 51
⁵₅ of the total = 5 x 51 = 255

Number of stickers at first = 255

Answer(s): 255