A toy train produces 10 different sounds when it moves around a circular toy track of radius 5 m at 10 m per min. However, the toy train is defective and it now produces only 2 different tunes at random. What are the odds that the train produces for consecutive music tones of the same type?
a) 1 in 16 B) 1 in 4+ c) 1 in 8 d) 1 in 32

• 1/(2^2)=1in4
• 13 years agoHelpfull: Yes(10) No(7)
• Initially it produces 10 sounds and the defect came and now it produces only 2different sounds and consecutively so there are totally 2 sounds and we have to select one sound and the probability is ½ and it produces the same sound concecutively for 2 times sothe probability becomes ½*1/2 ie ¼
• 12 years agoHelpfull: Yes(4) No(0)
• 1/2^5=8
• 13 years agoHelpfull: Yes(1) No(18)