exam
Maths Puzzle
Numerical Ability
Kay can eat 32 candies in 1 hour. Her sister can eat the same amount in 3 hours. How long will it take them together to eat the 32 pieces of candy.
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please help!
Graph x = 3 and 3x - 4y = 12 on a rectangular coordinate system
Which of the following could not be the lengths of the sides of a right triangle?
A. 3, 4, 5
B. 5, 12, 13
C. 8, 15, 17
D. 12, 15, 18
E. 9, 12, 15