1.

Prakash wrote three exams - 1st paper, 2nd paper and 3rd paper. The probability that he passes the 1st paper is 3/5. If he passes in any paper, the probability that he passes the next paper is 7/10. Otherwise the probability is 9/10. What is the probability that he passes in all three papers?1). 0.2342). 0.2843). 0.294 4). 0.264

Answer»

PROBABILITY of passing 1st paper = 3/5 

Probability of passing 2nd paper = 7/10

Probability of passing 3rd paper = 7/10 

∴ Probability that Prakash PASSES in all the three papers, 

= 3/5 × 7/10 × 7/10

= 147/500 

= 0.294



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