The chip which are used in SIM cards and ATM cards are made up of ________

The strip on the back of a credit card/debit card is a magnetic strip, often called a _____.

What is the number of ways of choosing 4 cards from a pack of 52 playing cards? In how many of these (i) four cards are of the same suit, (ii) four cards belong to four different suits, (iii) are face cards, (iv) two are red cards and two are black cards, (v) cards are of the same colour?

Five cards are drawn successively with replacement from a well-shuffled deck of 52 cards . What is the probability that i. all the five cards are spades? ii only 3 cards are spades? iii. none is a spade?

A card from a pack of 52 cards is lost. From the remaining cards of the pack; two cards are drawn and are found to be hearts. Find the probability of the missing card to be a heart.

A card from a pack of 52 cards is lost. From the remaining cards of the pack, two cards are, drawn and are found to be both diamonds. Find the probability of the lost card being a diamond.

A draws a card from a pack of n cards marked 1,2,ddot,ndot The card is replaced in the pack and B draws a card. Then the probability that A draws a higher card than B is a. (n+1)2n b. 1//2 c. (n-1)2n d. none of these

In a pack of 52 playing cards, two cards are drawn at random simultaneously. If the number of black cards drawn is a random variable, find the values of the random variable and number of points in its inverse images.

A pack of playing cards was found to contain only 51 cards. If the first 13 cards, which are examined are all red, then the probability that the missing card is black is :-

The king and queen of diamonds, queen and jack of hearts, jack and king of spades are removed from a deck of 52 playing cards and then well shufflied. Now one card is drawn at random from the remaining cards. Determine the probability that the card is (i) a clavor (ii) a queen of red card (iii) a king of black card