exam
Maths Puzzle
Numerical Ability
two angles are supplementary. One angle measures 30 less than twice the other. What are the measures of the angles?
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exam Other Question
A boy is 4 years old and his sister is three times as old as he is. When the boy is 12
years old, how old will his sister be?
Elimination: How do you solve these two problems:
r - 3p = 1
6r - p = 6
-2x + y = 3
x + 4y = 3