Quantitative Aptitude - Arithmetic Ability Questions

Find out the odd word/letters/number/number pair from the given alternatives.

In the question, two equations I and II are given. You have to solve both the equations and give answer

$$\begin{gathered} x2-11x+28=0 \\ y2-18y+81=0 \end{gathered}$$

If 3x2 = 102 - 52, find the value of x?

In the following question, select the odd number from the given alternatives.

What is the value of [(cos32θ + 3 cos 2θ)÷(cos6θ – sin6θ)]?

A T.V was sold at a profit of 5% If it had been sold at a profit of 10% , the profit would have been Rs. 1000 more. What is its cost price ?

The line passing through (-2,5) and (6,b) is perpendicular to the line 20x + 5y = 3. Find b?

If 25% of an electricity bill is deducted, Rs 1788 is still to be paid. How much was the bill?