.Choose the correct or the most appropriate answer for the following questions.
Write only the letter of the correct answer. (10 marks )
(1) A bag contains x red balls and 2 blues. A ball is chosen at random, given that the
probability that it will be red is 2/3 , then x=………
(2)
x=…………..
A. 2 B.3
C. 4 D. 5
E. None of these
(3) In the circle O, diameter AB= 20 cm, and chord AC= 16 cm, OP ⊥AC, then OP=……
A. 8 cm B. 7cm C. 6cm D. 5 cm E. 4cm