exam
Maths Puzzle
Numerical Ability
2*sqrt{3y^3} + y*sqrt{27y} - 2y*sqrt{3}
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exam Other Question
In a 10 foot wide alley, two ladders lean against opposite walls. One Ladder reaches 30 feet up on the wall, while the other reaches 20 ffet up on the opposite wall. How high above the ground will the two ladders cross?
In the number 7^1000, what is the digit in the units place?