Betty has 4 times as many coins as Ivory. Ivory has
37 as many coins as Hazel. If the three of them have a total of 110 coins, how many coins does Betty have?
| Betty |
Ivory |
Hazel |
| 4x3 |
1x3 |
|
| |
3x1 |
7x1 |
| 12 u |
3 u |
7 u |
The number of coins that Ivory has is repeated. Make the number of coins that Ivory has the same. LCM of 1 and 3 is 3.
Total number of coins that the three of them have
= 12 u + 3 u + 7 u
= 22 u
22 u = 110
1 u = 110 ÷ 22 = 5
Number of coins that Betty has
= 12 u
= 12 x 5
= 60
Answer(s): 60
