Sean invited 3 more women than men to his party.
13 of the women and
56 of the men turned up at the party. A total of 12 adults who were invited did not turn up. How many adults did he invite?
|
Women |
Men |
Total |
Comparing women and men |
3 more |
|
|
Total |
3x2 = 6 u |
+ 3 |
6x1 = 6 u |
|
Turned up |
1x2 = 2 u |
+ 1 |
5x1 = 5 u |
|
Did not turn up |
2x2 = 4 u |
+ 2 |
1x1 = 1 u |
12 |
|
Women |
Men |
Total |
Total |
6 u |
+ 3 |
6 u |
|
Turned up |
2 u |
+ 1 |
5 u |
|
Did not turn up |
4 u |
+ 2 |
1 u |
12 |
13 x 3 = 1
3 - 1 = 2
Total number of adults in the end
= 4 u + 2 + 1 u
= 5 u + 2
5 u + 2 = 12
5 u = 12 - 2
5 u = 10
1 u = 10 ÷ 5 = 2
Number of adults that Sean invited
= 6 u + 3 + 6 u
= 12 u + 3
= 12 x 2 + 3
= 24 + 3
= 27
Answer(s): 27