exam Maths Puzzle Numerical Ability

Not sure if this is right

7. (2 pts)
Two balls are to be selected without replacement from a bag containing one red, one blue, one green, one yellow, and one black ball. How many points are there in the sample space? 5*4 = 20 ??

Read Solution (Total 0)

exam Other Question

Please help me to solve this

Find the slope of the line passing through the points (4,0) & (4,5)


Please let me know how to solve this

Thank You
{5/x+2}-3/-x-2}
Simplify