PSLE At Bryan's fruit stall,
89 of the apples were green and the rest were red. He sold
13 of the total number of apples.
45 of the apples sold were green. 12 red apples were left. How many red apples did Bryan sell?
|
Green |
Red |
Total |
Before |
8x5 = 40 u |
1x5 = 5 u |
9x5 = 45 u |
Change |
|
|
- 3x5 = - 15 u |
Comparing red apples and green apples sold |
- 4x3 = - 12 u |
- 1x3 = - 3 u |
- 5x3 = - 15 u |
After |
28 u |
2 u |
6x5 = 30 u |
The total number of apples is the same. Make the denominators of the total number of apples the same.
13 =
39The 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 = 12
1 u = 12 ÷ 2 = 6
Number of red apples that Bryan sold
= 3 u
= 3 x 6
= 18
Answer(s): 18