A person buys twelve packets of VANISH detergent. Each packet contains one coupon, which bears one of the letters of the word VANISH. If he shows all the letters of the word VANISH, he gets one free packet. If he gets exactly one free packet, then the number of different possible combinations of the coupons is `

A person buys eight packets of TIDE detergent. Eachpacket contains one coupon, which bears one of the let-ters of the word TIDE. If he shows all the letters of theword TIDE, he gets one free packet. If he gets exactlyone free packet, then the number of different possiblecombinations of the coupons is

A shoping mall is running a scheme: Each packet of detergent SURF contains a coupon which bears letter of the word SURF, if a person buys at least four packets of detergent SURF, and produce all the letters of the word SURF, then he gets one free packet of detergent. If a person buys 8 such packets at a time, then the number of different combinations of coupon he has is

A shoping mall is running a scheme: Each packet of detergent SURF contains a coupon which bears letter of the word SURF, if a person buys at least four packets of detergent SURF, and produce all the letters of the word SURF, then he gets one free packet of detergent. If person buys 8 such packets, then the probability that he gets exactly one free packets is

A shoping mall is running a scheme: Each packet of detergent SURF contains a coupon which bears letter of the word SURF, if a person buys at least four packets of detergent SURF, and produce all the letters of the word SURF, then he gets one free packet of detergent. If a person buys 8 such packets, then the probability that he gets two free packets is

Find the number of ways in which all the letters of the word 'COCONUT' be arranged such that at least one 'C' comes at odd place.

The number of words which can be formed out of the letters a , b , c , d , e f taken 3 together, each word containing one vowel at least is

The number of words which can be formed out of the letters a , b , c , d , e f taken 3 together, each word containing one vowel at least is

10 different letters of an alphabet are given. Words with 5 letters are formed from these given letters then the numbers of words which have atleast one letter represent is:

Seven different letters are given. Then the number of ways in which , words of 5 letters can be formed such that atleast one of the letters is repeated is

Number of ways in which the letters of the word "NATION" can be filled in the given figure such that no row remains empty and each box contains not more than one letter, are :