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

Similar Questions

A man bought a car newly for ₦1,250,000. He had a crash with the car and later sold it at the rate...

In the diagram, O is the centre of the circle of radius 18cm. If < zxy = 70$^o$, calculate the ...

In the figure, QRST is a rectangle; PT// QM, angle P = 60o. Find angle MUR ...

The locus of points equidistant from two intersecting straight lines PQ and PR is...

The age (years) of some members in a singing group are: 12, 47, 49, 15, 43, 41, 13, 39, 43, 41 and 3...

Simplify $\sqrt[3]{(64r^{-6})^{\frac{1}{2}}}$...

Factorize m(2a-b)-2n(b-2a) ...

A farmer planted 5000 grains of maize and harvested 5000 cobs, each bearing 500 grains. What is the ...

The angle subtended by a diameter of a circle at the circumference is a/an ...

If x = {n$^2$+1:n is a positive integer and 1 $\leq$ n $\leq$ 5}, Y = {5n:n is a positive int...