In figure, a dart is thrown and lands in the interior of the circle. What is the probability that the dart will land in the shaded region?

A target shown in Figure, consists of three concentric circles of radii 3,7 and 9cm respectively. A dart is thrown and lands on the target. What is probability that the dart will and on the shaded region?

In the Figure, a square dart board is shown. The length of a side of the larger square is 1.5 times the length of a side of the smaller square. If a dart is thrown and lands on the larger square. What is the probability that it will land in the interior of the smaller square?

In the circle shown above, O is the center and bar(AB) is a diameter . There are two semicircles with diameters bar(AO) and bar(BO) , and four smaller semicircles with congruent diameters bar(AC), bar(CO),bar(OD) and bar(DB) . A point is picked at random in the large circle . What is the probability that it lands in a shaded region ?

In the given figure, A, B, C and D are centres of four circles that have a radius of 1 unit. If a point is selected at random from interior of square ABCD, then what is the probability that it lies in the shaded region

Point C is the center of the circle above. What fraction of the area of the circle is the area of the shaded region?

If a die is rolled twice, what is the probability that it will land on an even number at least once?

If a die is rolled twice, what is the probability that it will land on an even number both times?

If the circumference of the circle above is 16pi , what is the total area of the shaded regions?

In the figure above, what is the number of square units in the area of the shaded region?

Suppose you drop a die at random on the rectangular region shown in Figure. What is the probability that it will land inside the circle with diameter 1m?