The area of a trapezium is 214.5 cm2 and the distance between its parallel sides is 13 cm. If one of the parallel sides is of length 25 cm, find the length of the other side.
Tabassum got an average score of 78 in 4 tests. She got 79 as the average of the highest 3 scores, and her lowest two scores are the same numbers. What is the average of her highest two scores?
A bag contains 6 red balls, 6 blue balls and 4 green balls. Bushra draws 2 balls out of the bag. What is the probability that she gets a red ball and a blue ball?
AB and AC are two chords of a circle such that AB = 2AC. If distances of AB and AC from the centre are 1 cm and 4 cm respectively, find the area of circle. (Assume π = 3)