Bobby invited 12 more women than men to his party.
23 of the women and
34 of the men turned up at the party. A total of 18 adults who were invited did not turn up. How many adults did he invite?
| |
Women |
Men |
Total |
Comparing women
and men |
12 more |
|
|
| Total |
3x4 =
12 u |
+ 12 |
4x3 =
12 u |
|
| Turned up |
2x4 =
8 u |
+ 8 |
3x3 =
9 u |
|
| Did not turn up |
1x4 =
4 u |
+ 4 |
1x3 =
3 u |
18 |
| |
Women |
Men |
Total |
| Total |
12 u |
+ 12 |
12 u |
|
| Turned up |
8 u |
+ 8 |
9 u |
|
| Did not turn up |
4 u |
+ 4 |
3 u |
18 |
23 x 12 = 8
12 - 8 = 4
Total number of adults in the end
= 4 u + 4 + 3 u
= 7 u + 4
7 u + 4 = 18
7 u = 18 - 4
7 u = 14
1 u = 14 ÷ 7 = 2
Number of adults that Bobby invited
= 12 u + 12 + 12 u
= 24 u + 12
= 24 x 2 + 12
= 48 + 12
= 60
Answer(s): 60
