In a shopping malls,
710 of the customers were women. Within five minutes, 56 more women and 21 more men entered the shopping malls. As a result, there were 91 more women than men. How many customers were there altogether in the end?
|
Women |
Men |
Before |
7 u |
3 u |
Change |
+ 56 |
+ 21 |
After |
7 u + 56 |
3 u + 21 |
If there are another 91 men in the end, the number of men and women will be the same.
7 u + 56 = 3 u + 21 + 91
7 u - 3 u = 112 - 56
4 u = 56
1 u = 56 ÷ 4 = 14
Number of customers in the end
= 7 u + 56 + 3 u + 21
= 10 u + 77
= 10 x 14 + 77
= 140 + 77
= 217
Answer(s): 217