Kathy had some beads at first. She gave 29 of her beads to her sister and 13 of her beads to her neighbour. After that, her mother gave her another 18 beads. She had 38 beads in the end. How many beads did Kathy have at first?
Fraction of beads left after giving to her sister and her neighbour
= 1 -
29 -
13 = 1 -
29 -
39 = 1 -
59 =
49 Number of beads left after giving to her sister and her neighbour = 4 u
Number of beads left after her mother gave her another 18 beads = 4 u + 18
4 u + 18 = 38
4 u = 38 - 18
4 u = 20
1 u = 20 ÷ 4 = 5
Number of beads that Kathy had at first
= 9 u
= 9 x 5
= 45
Answer(s): 45
