exam
Maths Puzzle
Numerical Ability
Jose rode his trail bike for 10 miles. Two-thirds of the distance was over a mountain trail. How long is the mountain trail?
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exam Other Question
The 3-digit number is a perfect square less than 200. If the digits are reversed, the resulting number is also a perfect square. What is the number such that no digits are the same?
Here T defined by .Find a vector “x” whose image under T is b, and determines whether x is unique.
A=1 -3 2
0 1 -4
3 -5 -9
b= 6
-7
-9