There were 42 mangoes altogether in Basket A and Basket B. After I had transferred 9 mangoes from Basket A to Basket B, the number of mangoes in Basket A became twice the number of mangoes in Basket B. How many mangoes were there in Basket A at first?
|
A |
B |
Total |
Before |
2 u + 9 |
1 u - 9 |
42 |
Change |
- 9 |
+ 9 |
|
After |
2 u |
1 u |
42 |
Total number of mangoes
= 2 u + 1 u
= 3 u
3 u = 42
1 u = 42 ÷ 3 = 14
Number of mangoes in Basket A in the end
= 2 u
= 2 x 14
= 28
Number of mangoes in Basket A at first
= 28 + 9
= 37
Answer(s): 37