In a shopping malls,
710 of the customers were men. Within five minutes, 53 more men and 22 more women entered the shopping malls. As a result, there were 99 more men than women. How many customers were there altogether in the end?
|
Men |
Women |
Before |
7 u |
3 u |
Change |
+ 53 |
+ 22 |
After |
7 u + 53 |
3 u + 22 |
If there are another 99 women in the end, the number of women and men will be the same.
7 u + 53 = 3 u + 22 + 99
7 u - 3 u = 121 - 53
4 u = 68
1 u = 68 ÷ 4 = 17
Number of customers in the end
= 7 u + 53 + 3 u + 22
= 10 u + 75
= 10 x 17 + 75
= 170 + 75
= 245
Answer(s): 245