The area of a trapezium is 143 cm^{2} and the distance between its parallel sides is 11 cm. If one of the parallel sides is of length 5 cm, find the length of the other side.

Given a circle, a circumscribed square is one that completely encloses the circle, and an inscribed square is completely enclosed by the circle, as shown below

If the the difference in the areas of the two squares is 49 sq. m., then what is the area of the circle in sq. m.? Assume π =

In a class of 17 students, the average marks in a test was 70. If Natalia got 72 marks and Leonardo got 113 marks, what were the average of the other 15 students?

A coin is tossed ^@ 500 ^@ times and it is found that head comes up ^@ 370 ^@ times and tail ^@ 130 ^@ times.
If a coin is tossed at random, what is the probability of getting a tail?

6 teams compete in a track competition. If there are 11 events in the competition, no event ends in a tie, and no team wins more than 2 events, what is the minimum possible number of teams that won at least one event?

Train A leaves Tijuana for Zapopan and travels at a constant speed. At the same time train B leaves Zapopan for Tijuana and also travels at a constant speed. Town X is between Tijuana and Zapopan. Tijuana, town X and Zapopan lie on a straight line. Which train has greater speed?

Which of following statements are sufficient to answer the question. I. Train B arrives at town X before train A. II. Town X is farther to Tijuana than Zapopan.

A.

Statement II alone is sufficient to answer the problem.

B.

Statements I and II both are not sufficient

C.

Statement I alone is sufficient to answer the problem.