CBSE One Mark Important Questions for 2020 Exam Part 5

Lesson 5 of 13 • 0 upvotes • 9:05mins

Brijesh Sharma

This video is for CBSE class 10 students. The questions solved are 1 marker type questions that too very important and likely to be asked in upcoming BOARD exam. This video is relevant for students opted for STANDARD and BASIC maths both. 4 questions are taken in this video and here they are, 15) In the given fig., PQ is a tangent at a point C to a circle with centre O. If AB is a diameter and angle CAB = 30°, find angle PCA 16) For what value of k will k+9, 2k-1 and 2k+7 are the consecutive terms of an A.P? 17) A ladder leaning against a wall, makes an angle of 60° with the horizontal. If the foot of the ladder is 2.5m away from the wall, find the length of the ladder. 18) A card is drawn at random from a well shuffled pack of 52 playing cards. Find the probability of getting neither a red card nor a queen.