Out of 15 tokens consecutively numbered from 1 to 15, 3 tokens are drawn at random. The probability that the numbers on them in AP is

Out of (2n+1) tickets consecutively numbered, three are drawn at random. Find the chance that the numbers on them are in AP.

Statement 1: Our of 5tickets consecutively numbered,three are drawn at random.The chance that the numbers on them are in A.P.is 2/15. Statement 2: Out of 2n+1 tickets consecutively numbed,three are drawn at random,the chance that the numbers on them are in A.P.is 3n/(4n^(2)-1) .

Statement-1: Out of 21 tickets with number 1 to 21, 3 tickets are drawn at random, the chance that the numbers on them are in AP is (10)/(133) . Statement-2: Out of (2n+1) tickets consecutively numbered three are drawn at ranodm, the chance that the number on them are in AP is (4n-10)/ (4n^(2)-1) .

A box contains cards numbered from 11 to 123. A card is drawn at random from the box. Find the probability that the number on the drawn card is: A square number

From a set of 17 cards numbered 1 to 17, one card is drawn at random. The probability that the number on the card is divisible by 2 or 3 is

A box contains cards numbered from 11 to 123. A card is drawn at random from the box. Find the probability that the number on the drawn card is: a multiple of 7.

From 80 cards numbered 1 to 80, two cards are drawn at random.The probability that the cards have the numbers divisible by 4 is

There are 25 tickets numbered from 1 to 25. A ticket is drawn at random. Find the probability that the number of that ticket is either a multiple of 2 or multiple of 3.

A bag contains100 identical tokens on which numbers 1 to 100 are marked. A token is drawn randomly. What is the probability that the number on the token is: 9i) an even number (ii) an odd number (iii) a multiple of 3 (iv) a multiple of 5 (v) a multiple of 3 and 5 (vi) a multiple of 3 or 5 (vii) less than 20 (viii) greater than 70?