In a basket,
12 are kiwis and the rest are pears. If I give away 90 pears, there will be
211 as many pears as kiwis. How many kiwis and pears are there in the basket altogether?
|
Kiwis |
Pears |
Total |
Before |
1x11 = 11 u |
1x11 = 11 u |
2x11 = 22 u |
Change |
|
- 90 |
|
After |
11x1 = 11 u |
2x1 = 2 u |
|
The number of kiwis remains unchanged.
Change in the number of pears
= 11 u - 2 u
= 9 u
9 u = 90
1 u = 90 ÷ 9 = 10
Number of kiwis and pears
= 22 u
= 22 x 10
= 220
Answer(s): 220