Quantitative Aptitude - Arithmetic Ability Questions

One of the roots of the equation x2 - 4x + k = 0 is x = 3. The other root is

Select the odd word/letters/number/number pair from the given alternatives.

What least number must be added to 4131, so that the sum is completely divisible by 19?

Which is the correct ascending order of the given numbers?

Select the odd word/letters/number/number pair from the given alternatives.

Simple interest on a sum of Rs 50200 for 3 months is Rs 1380.5. What is the rate (in percentage) of interest per annum?

A chord of length 60 cm is at a distance of 16 cm from the centre of a circle. What is the radius (in cm) of the circle?

The radius of a hemisphere is 21 cm, what is its volume? (Take π = 22/7)