In a shopping centres,
711 of the customers were men. Within five minutes, 50 more men and 40 more women entered the shopping centres. As a result, there were 103 more men than women. How many customers were there altogether in the end?
|
Men |
Women |
Before |
7 u |
4 u |
Change |
+ 50 |
+ 40 |
After |
7 u + 50 |
4 u + 40 |
If there are another 103 women in the end, the number of women and men will be the same.
7 u + 50 = 4 u + 40 + 103
7 u - 4 u = 143 - 50
3 u = 93
1 u = 93 ÷ 3 = 31
Number of customers in the end
= 7 u + 50 + 4 u + 40
= 11 u + 90
= 11 x 31 + 90
= 341 + 90
= 431
Answer(s): 431