PSLE At Seth's fruit stall,
56 of the apples were red and the rest were green. He sold
12 of the total number of apples.
45 of the apples sold were red. 28 green apples were left. How many red apples did Seth sell?
|
Red |
Green |
Total |
Before |
5x5 = 25 u |
1x5 = 5 u |
6x5 = 30 u |
Change |
|
|
- 3x5 = - 15 u |
Comparing green apples and red apples sold |
- 4x3 = - 12 u |
- 1x3 = - 3 u |
- 5x3 = - 15 u |
After |
13 u |
2 u |
3x5 = 15 u |
The total number of apples is the same. Make the denominators of the total number of apples the same.
12 =
36The number of apples sold is the repeated identity. Make the number of apples sold the same. LCM of 3 and 5 is 15.
2 u = 28
1 u = 28 ÷ 2 = 14
Number of red apples that Seth sold
= 12 u
= 12 x 14
= 168
Answer(s): 168