At first, there were 387 more men than women at the safari park. By 4 p.m., a total of 220 men and women left the safari park. There were as many men as women who left the safari park. In the end, there were 4 times as many men as women who remained behind. How many men were at the safari park at first?
| |
Men |
Women |
Difference |
| Before |
4 u + 110 |
1 u + 110 |
387 |
| Change |
- 110 |
- 110 |
|
| After |
4 u |
1 u |
3 u |
Since there was the same number of women and men that left, the difference between the number of women and men remains unchanged.
3 u = 387
1 u = 387 ÷ 3 = 129
Number of men in the end
= 4 u
= 4 x 129
= 516
Number of men that left
= 220 ÷ 2
= 110
Number of men at first
= 516 + 110
= 626
Answer(s): 626
