In a shopping malls,
67 of the customers were men. Within five minutes, 64 more men and 20 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 |
6 u |
1 u |
Change |
+ 64 |
+ 20 |
After |
6 u + 64 |
1 u + 20 |
If there are another 99 women in the end, the number of women and men will be the same.
6 u + 64 = 1 u + 20 + 99
6 u - 1 u = 119 - 64
5 u = 55
1 u = 55 ÷ 5 = 11
Number of customers in the end
= 6 u + 64 + 1 u + 20
= 7 u + 84
= 7 x 11 + 84
= 77 + 84
= 161
Answer(s): 161