Wendy had some chocolate bars. She sold 30% of her chocolate bars and gave half of the remainder to her cousin. After that, she bought 44 chocolate bars and had a total of 65 chocolate bars in the end. How many chocolate bars did Wendy have at first?
Percentage of chocolate bars that Wendy left after selling 305 of her chocolate bars
= 100% - 30%
= 70%

Fraction of chocolate bars that Wendy had left after giving to her cousin
= ¹₂ x 70%
= ⁷₂₀

Number of chocolate bars that Wendy had left = 7 u

Number of chocolate bars that Wendy had in the end = 7 u + 44

7 u + 44 = 65
7 u = 65 - 44
7 u = 21

1 u = 21 ÷ 7 = 3

Total number of chocolate bars that Wendy had at first
= 20 u
= 20 x 3
= 60

Answer(s): 60