Wipro Company Numerical Ability Probability

A speaks the truth in 75% cases whereas B lies in 20% cases. In what percent of cases are they likely to contradict each other narrating the same incident?
A. 45%
B. 35%
C. 40%
D. 30%
E. 50%

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Wipro Other Question

A bag contains 3 white balls, 3 black balls & 2 red balls. One by one three balls are drawn out without replacement. What is the probability that the third ball is red?
A. 0.25
B. 0.15
C. 0.35
D. 0.45
E. 0.40 Eight litres are drawn off from a vessel full of water and substituted by pure milk. Again eight litres of the mixture are drawn off and substituted by pure milk.If the vessel now contains water and milk in the ratio 9:40, find the capacity of the vessel.
A. 21 litrers
B. 22 litres
C. 20 litres
D. 14 litres
E. 28 litres