Related InterviewSolutions

• A number lock on a suitcase has three wheels each labelled with ten digits 0 to 9. If opening of the lock is a particular sequence of three digits with no repeats, how many such sequences will be possible? Also, find the number of unsuccessful attempts to open the lock.
• A number lock on a suitcase has 3 wheels each labeled with ten digits 0 to 9. If the opening of the lock is a particular sequence of three digits with no repeats, how many such sequences will be possible? Also, find the number of unsuccessful attempts to open the lock.
• How many different words can be formed with the letters of the word ‘CAPTAIN’? In how many of these C and T are never together?
• In how many ways can the letters of the word ‘ARRANGE’ be arranged so that the two R’s are never together?
• In how many ways can the letters of the word ‘ARRANGE’ be arranged so that the two R’s are never together?
• The number of words from the letters of the word ‘BHARAT’ in which B and H will never come together, is A. 360 B. 240 C. 120 D. none of these
• Find the total number of arrangements of the letters in the expression a3 b2 c4 when written at full length.
• How many words, with or without meaning, can be formed using all theletters of the word EQUATION, using each letter exactly once.
• The number of ways to arrange the letters of the word CHEESE are A. 120 B. 240 C. 720 D. 6
• In how many ways can the letters of the word ‘PENCIL’ be arranged so that N is always next to E?