In a supermarkets,
58 of the customers were men. Within five minutes, 61 more men and 39 more women entered the supermarkets. As a result, there were 90 more men than women. How many customers were there altogether in the end?
|
Men |
Women |
Before |
5 u |
3 u |
Change |
+ 61 |
+ 39 |
After |
5 u + 61 |
3 u + 39 |
If there are another 90 women in the end, the number of women and men will be the same.
5 u + 61 = 3 u + 39 + 90
5 u - 3 u = 129 - 61
2 u = 68
1 u = 68 ÷ 2 = 34
Number of customers in the end
= 5 u + 61 + 3 u + 39
= 8 u + 100
= 8 x 34 + 100
= 272 + 100
= 372
Answer(s): 372