In a basket,
14 are pears and the rest are oranges. If I give away 21 oranges, there will be
23 as many oranges as pears. How many pears and oranges are there in the basket altogether?
|
Pears |
Oranges |
Total |
Before |
1x3 = 3 u |
3x3 = 9 u |
4x3 = 12 u |
Change |
|
- 21 |
|
After |
3x1 = 3 u |
2x1 = 2 u |
|
The number of pears remains unchanged.
Change in the number of oranges
= 9 u - 2 u
= 7 u
7 u = 21
1 u = 21 ÷ 7 = 3
Number of pears and oranges
= 12 u
= 12 x 3
= 36
Answer(s): 36