exam
Maths Puzzle
Numerical Ability
Ricardo is 4 years less than twice as old as his sister. The sum of their ages is 20. How old is Ricardo?
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exam Other Question
I need help working out these equations. My teacher made these problems up.
-8+t/3=7
4(x+3)=20
4y+3
_____ =9
7
Kevin ran 4 miles more than Steve ran. The sum of their distance is 26 miles.
How far did Steve run? The domain of the solution is {0, 4, 22, 11}.