Answers

2014-05-21T10:35:45+05:30
1/3 
1/4 
1/5
your qustion and answer is

0.33 ,  0.25  ,  0.2  
0
i did not ask to divide d question is of inter sylaabus
what was the sun
2014-05-21T11:22:31+05:30
Probability that question will solved = at least one student solve the question
                           = 1/3*1/4*1/5+1/3*1/4*4/5+1/3*3/4*1/5+2/3*1/4*1/5+2/3*3/4*1/5+2/3*1/4*4/5+1/3*3/4*4/5
= (1+4+3+2+6+8+12)/60
=  36/60
=  3/5 or 0.6
0