Wendy had some coins at first. She gave 19 of her coins to her cousin and 23 of her coins to her buddy. After that, her mother gave her another 6 coins. She had 20 coins in the end. How many coins did Wendy have at first?
Fraction of coins left after giving to her cousin and her buddy
= 1 -
19 -
23 = 1 -
19 -
69 = 1 -
79 =
29 Number of coins left after giving to her cousin and her buddy = 2 u
Number of coins left after her mother gave her another 6 coins = 2 u + 6
2 u + 6 = 20
2 u = 20 - 6
2 u = 14
1 u = 14 ÷ 2 = 7
Number of coins that Wendy had at first
= 9 u
= 9 x 7
= 63
Answer(s): 63
