There are 90 stickers in Box M and 75 stickers in Box N.
Some stickers are transferred from Box M to Box N.
Box N has 65 more stickers than Box M.
How many stickers are transferred from Box M to Box N?
|
Box M |
Box N |
Before |
90 |
75 |
Change |
- ? |
+ ? |
After |
1 u |
1 u + 65 |
Total number of stickers
= 90 + 75
= 165
In the end
Total number of stickers = 1 u + 1 u + 65 = 2 u + 65
The total number of stickers at first and in the end remains unchanged.
2 u + 65 = 165
2 u = 165 - 65 = 100
1 u = 100 ÷ 2 = 50
Number of stickers that are transferred from Box M to Box N
= Number of stickers in Box M at first - Number of stickers in Box M in the end
= 90 - 50
= 40
Answer(s): 40