Quantitative Aptitude - Arithmetic Ability Questions

If the roots of the equation a(b – c)x2 + b(c – a)x + c(a – b) = 0 are equal, then which of the following is true?

What is the value of 53% of 7400?

What is the reflection of the point (5, -2) in the line y = -1?

The diagonal of a square is 12 cm what is the length (in cm) of its side?

The average of 15 numbers is 7. If the average of the first 8 numbers is 6.5 and the average of the last 8 numbers is 8.5 then middle number is

The total surface area of a hemisphere is 4158 cm2. Find its diameter (in cm).

P, Q and R together can make a table in 40 minutes. P and Q together can make it in 60 minutes. How much time (in minutes) will R alone take to make the table?

If two marbles are picked at random, what is the probability that either both are red or both are green?