A speaks truth in `70%` cases and his friend B speaks lie in `20%` cases .in what percentage of cases are they likely to contradict each other in narrating the same incident ?

A speaks the truth in 60 percent of cases and B in 90 percent of cases. In what percentage of cases are they likely to contradict each other in stating the same fact ?

X speaks truth in 60% and Y in 50% of the cases. Find the probability that they contradict each other narrating the same incident.

A speaks the truth 3 out of 4 times and B, 5 out of 6 times, what is the probability that they will contradict each other in stating the same fact ?

A speaks truth in 60% cases and B speaks truth in 70% cases. The probability that they will say the same thing while describing a single event is (A) 2/19 (B) 3/29 (C) 17/19 (D) 0.54

The probability that A speaks truth is (4)/(5) , while this probability for B is (3)/(4) , then the probability that they will contradict each when asked to speak on a fact, is -

Calculate the probable percentage of female child in fourth case where the first three child is already female of a couple

Write the negation of each of the following statements and find in each case the truth value of the resulting statement : Both the diagonals of a parallelogram have the same length .

A shunt is connected with a galvanometer in such a way that 1/90 part of the main current flows through the galvanometer.IF another shunt replaces the previous one then galvanometer current decreases by 10%. IF the main current in each case be the same then what percent of the first will be the resistance of the second shunt?

A person ascends vertically from the earth's surface to a height which is the same as the earth's radius. Then he descends to the centre of the earth. What will be the weight of the person with respect to his weight on the earth's surface in each case ?