The probability of a non-leap year having $53$ Mondays is .........

If the roots of each of the equations $2x^2+x-1=0$, $3x^2-10x+3=0$, and $6x^2+11x-2=0$ correspond to probabilities of three events of a random experiment, then those events are

The chances to fail in Physics are $20 \%$ and the chances to fail in Mathematics are $10 \%$. What are the chances to fail in at least one subject (in $\%$)?

If $A$ and $B$ are two events of a random experiment,$P(A) = 0.25$,$P(B) = 0.5$ and $P(A \cap B) = 0.15$,then $P(A \cap \bar{B}) = $

The probability of obtaining an even number on each die,when a pair of dice is rolled is . . . . . . .

The probability that a non-leap year selected at random will have $53$ Sundays or $53$ Saturdays is