Small guavas |
Medium guavas |
Large guavas |
$2 |
$3 |
$5 |
Reggie had some guavas in 3 sizes. The number of medium guavas was twice the number of large guavas. The number of large guavas were five times the number of small guavas. He sold all the small and medium guavas. He received $130 from selling
25 of the large guavas.
- How many large guavas did he have at first?
- How much less did he collect from selling the small guavas than the medium guavas?
Small guavas |
Medium guavas |
Large guavas |
|
2x5 |
1x5 |
1x1 |
|
5x1 |
1 u |
10 u |
5 u |
(a)
The number of large guavas is the repeated identity. Make the number of large guavas the same. LCM of 1 and 5 is 5.
|
Small guavas |
Medium guavas |
Large guavas |
Before |
1 u |
10 u |
5 u |
Change |
- 1 u |
- 10 u |
- 2 u |
After |
0 |
0 |
3 u |
Number of large guavas that Reggie sold
=
25 x 5 u
= 2 u
|
Small guavas |
Medium guavas |
Large guavas |
Number |
1 u |
10 u |
2 u |
Value |
$2 |
$3 |
$5 |
Total value |
2 u |
30 u |
10 u |
Amount that Reggie received from selling of
25 of the large guavas = 10 u
10 u = 130
1 u = 130 ÷ 10 = 13
Number of large guavas at first
= 5 u
= 5 x 13
= 65
(b)
Amount that Reggie collected less from selling the small guavas than the medium guavas
= 30 u - 2 u
= 28 u
= 28 x 13
= $364
Answer(s): (a) 65; (b) $364