A number is selected at random between 20 and 30, both numbers inclusive. Find the probability that the number is a prime. 

Similar Questions

If x3 - 12x - 16 = 0 has x = -2 as a solution then the equaion has...

Evaluate: \(\int^{z}_{0}(sin x - cos x) dx \hspace{1mm}Where\hspace{1mm}letter\hspace{1mm}z = \frac{...

The diagonals of a rhombus are 16cm and 30cm long. What is the perimeter of the rhombus ...

The area of the curved surface of the cone generated by the sector of a circle radius 6cm and arc&nb...

Find the mean of t + 2, 2t - 4, 3t + 2 and 2t....

\(\begin{array}{c|c} Age(years) & 13 & 14 & 15 & 16 & 17 \\ \hline Frequency & 10 & 24 & 8 & 5...

The length of an arc of a circle of radius 5cm is 4cm. Find the area of the sector ...

Solve for x if $25^{x} + 3(5^{x}) = 4$...

If $\frac{y-3}{2}<\frac{2y-1}{3}$, which of the following is true?...

A man bought 220 mangoes at N5x. He sold each for 3x kobo and made a gain of N8. Find the value of x...