exam
Maths Puzzle
Numerical Ability
In a circle whose radius is 15 inches, a chord is 12 inches from the center, what is the length of the chord
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exam Other Question
Events W,X,Y and Z are independent, and P(W)= 0.75, P(X)= 0.25, P(Y)= 0.2, and P(Z)= 0.3. Find P(W and X).
(6x^2-x-1)/(x^2+4x+4)>0