Billy invited 3 more women than men to his party.
23 of the women and
16 of the men turned up at the party. A total of 36 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 |
2x2 = 4 u |
+ 2 |
1x1 = 1 u |
|
Did not turn up |
1x2 = 2 u |
+ 1 |
5x1 = 5 u |
36 |
|
Women |
Men |
Total |
Total |
6 u |
+ 3 |
6 u |
|
Turned up |
4 u |
+ 2 |
1 u |
|
Did not turn up |
2 u |
+ 1 |
5 u |
36 |
23 x 3 = 2
3 - 2 = 1
Total number of adults in the end
= 2 u + 1 + 5 u
= 7 u + 1
7 u + 1 = 36
7 u = 36 - 1
7 u = 35
1 u = 35 ÷ 7 = 5
Number of adults that Billy invited
= 6 u + 3 + 6 u
= 12 u + 3
= 12 x 5 + 3
= 60 + 3
= 63
Answer(s): 63