Julie had 117 less chocolate bars than Tammy. Tammy used
56 of her chocolate bars and Julie used
45 of her chocolate bars. In the end, Tammy had 3 times as much as Julie. Find the number of chocolate bars that Tammy had at first.
| |
Tammy |
Julie |
Comparing Tammy
and Parry at first |
|
117 less |
| Before |
6x3 =
18 u |
5 u |
| Change |
- 5x3 =
- 15 u |
- 4 u |
| After |
1x3 =
3 u |
1 u |
Comparing Tammy
and Parry in the end |
3 u |
1 u |
The number of chocolate bars that Tammy had in the end is repeated. Make the number of chocolate bars that Tammy had in the end the same. LCM of 1 and 3 is 3.
Number of chocolate bars that Julie had less than Tammy
= 18 u - 5 u
= 13 u
13 u = 117
1 u = 117 ÷ 13 = 9
Number of chocolate bars that Tammy had at first
= 18 u
= 18 x 9
= 162
Answer(s): 162
