MCQ
Find domain of function |x|:
- ASet of real numbers
- BSet of positive real numbers
- CSet of integers
- DSet of natural numbers
Solution:
Since the above function can have all real values of x. So, domain is set of real numbers.

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All the three face cards of spades are removed from a well-shuffled pack of 52 cards. A card is then drawn at random from the remaining pack. Find the probability of getting black face card:
While shuffling a pack of 52 playing cards, 2 are accidentally dropped. Find the probability that the missing cards to be of different colours:
$\frac{29}{52}$
$\frac{1}{2}$
$\frac{26}{51}$
$\frac{27}{51}$