Box N and Box P have a total of 133 chocolate bars. After 13 chocolate bars were transferred from Box N to Box P, there were 6 times as many chocolate bars in Box N as Box P. How many chocolate bars were there in each box in the end?
- Box N
- Box P
|
Box N |
Box P |
Total |
Before |
6 u + 13 |
1 u - 13 |
133 |
Change |
- 13 |
+ 13 |
|
After |
6 u |
1 u |
133 |
(a)
The total number of chocolate bars at first and in the end remains the same.
Total number of chocolate bars in the end
= 6 u + 1 u
= 7 u
7 u = 133
1 u = 133 ÷ 7 = 19
Number of chocolate bars in Box N in the end
= 6 u
= 6 x 19
= 114
(b)
Number of chocolate bars in Box P in the end
= 1 u
= 19
Answer(s): (a) 114; (b) 19