Level 3
At the school's recent donation drive, for every $1 donated by a child, an adult donated twice the amount. There were 5 times as many children as adults who were at the event. There were 23 times as many girls as boys at the event. Given that a total amount of $1470 was collected during the event, how many girls were at the event?
Level 2
The ratio of Adam's money to Bryan's money is 4 : 3.
The ratio of Bryan's money to Chris' money is 2 : 1.
The total amount that they have is $510.
How much more money does Adam have than Chris?
Level 3
In a school, the ratio of adults to the number of children is 12 : 7.
The ratio of the number of boys to the number of girls is 3 : 2.
There are 70 more boys than girls.
How many people are there in the school?
Level 3
Adam receives his allowance of $250.
The ratio of Adam's spending to Adam's saving is 2 : 3.
The ratio of Adam's spending on food to the remaining of other expenses is 1 : 4.
How much does Adam save?
How much less does Adam spend on food than other expenses?
