At the night market, there were 40% as many boys as girls and 30% more adults than boys. Given that there were 30 more adults than boys at the night market, how many children were there altogether?
Boys |
Girls |
Adults |
2x5 |
5x5 |
|
10x1 |
|
13x1 |
10 u |
25 u |
13 u |
40% =
40100 =
25Boys : Girls = 2 : 5
100% + 30% = 130%
130% =
130100 =
1310 Boys : Adults = 10 : 13
The number of boys is repeated. Make the number of boys the same. LCM of 2 and 10 is 10.
Number of more adults than boys
= 13 u - 10 u
= 3 u
3 u = 30
1 u = 30 ÷ 3 = 10
Number of children
= 10 u + 25 u
= 35 u
= 35 x 10
= 350
Answer(s): 350