Question
14 defective fans were accidentally mixed with 126
non-defective fans. One fan is randomly selected. Find the probability that it is a defective fan.Solution
Number of defective fans = 14
Total number of fans = 126 + 14 = 140
Required probability = (14/140) = (1/10)
The radius of a circle is 13 cm, and the length of the chord is 10 cm. Find the distance between the chord and the centre of the circle. Â

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