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Problem 21: In the CE Board Exam in which there are 3 subjects, the probability of a student of passing any subject is 0.70. What is the probability that the student passes at least 2 subjects? A. 0.64 C. 0.58 B. 0.28 D. 0.49 Probl2m 22: There are 3 candidates A, B, and C for a Mayor in a small Town. The odds that A will win are 4:3 and the odds that B will win are 1:5. What is the probability that B or C will win? A. 3}? C. 4l9 B. 316 D. 1042 Problem 23: In a survey involving the votes received by 3 barangay councillors A, B, and C last 2016 Barangay elections revealed the following results: 50 voted the 3 candidates 600 voted A 770 voted B 700 voted C 300 voted A and B 420 voted B and C 240 voted A and C Howr many in the group voted candidate A only? A. 100 C. 120 B. 110 D. 130 Problem 24: A roulette circle is divided into 10 sectors with 1 of the sectors coloured white, 2 of the sectors coloured red, 3 coloured blue, and 4 coloured black. A spinner wins P 500 if she spins white, P 400 if she spins red, P 300 it spins blue, and P 200 is spins black. What is the mathematical expectation of the game? A. P 100 C. P 250 B. P 180 D. P 300 Problem 25: A signal is to be formed from 4 different colored ags hung on a horizontal line. How many signals that can be formed, if the signal is to consists of one or more ags? A. 56 C. T2 B. 64 D. 81