Opal, Ivory and Natalie had a total of 245 coins. Opal gave
14 of her coins away. Natalie gave away 3 times as many coins as Opal and Ivory gave away 79 coins. In the end, they had 150 coins left. How many coins did Ivory and Natalie have in total in the end?
|
Opal |
Ivory |
Natalie |
Total |
Before |
4 u |
? |
? |
245 |
Change |
- 1 u |
- 79 |
- 3 u |
- 95 |
After |
3 u |
? |
150 |
Number of coins that Natalie gave away
= 3 x 1 u
= 3 u
Number of coins given away
= 1 u + 79 + 3 u
= 4 u + 79
4 u + 79 = 245 - 150
4 u = 95 - 79
4 u = 16
1 u = 16 ÷ 4 = 4
Number of coins that Ivory and Natalie had in the end
= 150 - 3 u
= 150 - 3 x 4
= 150 - 12
= 138
Answer(s): 138