Quantitative Aptitude - Arithmetic Ability Questions

If √(1 - sin2A) = x, then the value of x is

A boy starts from his house and walks at a speed of 5 km/hr and reaches his school 3 minutes late. Next day he starts at the same time and increases hisspeed by 4 km/hr and reaches 3 minutes early. What is the distance (in km) between the school and his house?

A shopkeeper, sold cashew nuts at the rate Rs 1,260 a kg and bears a loss of 8%. Now if he decides to sell it at Rs 1,386 per kg, what will be the result?

For x > 0, what is the minimum value of  x + x+22x?

In each question two equations numbered I and II are given,you haveto solve both the equation and choose the correctanswer.

$$\begin{gathered} I. 5x2+ 28x = -15 \\ II. 3y2+ 11y + 6 = 0 \end{gathered}$$

In the following question, four number pairs are given. The number on left side of (–) is related to the number of the right side of (–) with some Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

If A = 232, B = 231+ 230+ 229+ ... + 20and C = 315+ 314+ 313+ ... + 30, then which of the following option is TRUE?

If a = 2 , b = ­3 then the value of 27a3 - 54a2b + 36ab2 - 8b3 is