Multiple Choice Questions on Chance that Sheela tells truth is 35 and for Ramesh is 75 In what percent they likely to contradict ........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

Chance that Sheela tells truth is 35 and for Ramesh is 75 In what percent they likely to contradict ...........

Quantitative Aptitude ( CCS) Probability
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    Chance that Sheela tells truth is 35% and for Ramesh is 75%. In what percent they likely to contradict each other in the same question?

    11/40

    Incorrect Answer

    23/40

    Correct Answer

    15/37

    Incorrect Answer

    43/60

    Incorrect Answer
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    Explanation:

    P(A) = 35/100=7/20 and P(B) = 75/100=3/4. 
    Now they are contradicting means one lies and other speaks truth. 
    So, Probability = 7/20*1/4 + 13/20 * 3/4 =7/80+39/80=46/80=23/40

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