Level 3
String A is thrice as long as String B. String B is 36 cm shorter than String C. String C is 58 cm shorter than String A. How long is String B?
Level 3
In the theater, there were 98 people watching a movie. Given that there were 23 fewer girls than boys and 36 more children than adults, how many boys were there?
Level 3
At a gathering, there were 60 more children than adults. There were 55 more girls than boys. Given that there were 210 people altogether, how many girls were there at the gathering?