book Maths Puzzle Numerical Ability

The Slope of a line through the point (1,3) is 1.5. If the point (-3,y) lies on the line, find the value of y.

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book Other Question

Taylor tosses three coins. The event E is "exactly two coins land heads." What is the probability,P(E) that Taylor tosses exactly two heads?
P(E)=n(E)/n(S)=____/_____???
A tank has 10 drain pipes of the same diameter and characteristics. an inflow of water enters the tank at a uniform rate. if the tank is initially full and the 10 drain pipes are o