Four-digit numbers are to be formed using the digits 1, 2, 3 and 4; and none of these four digits are repeated in any manner.Further,1. 2 and 3 are not to immediately follow each other2. 1 is not be immediately followed by 33. 4 is not to appear at the last place4. 1 is not to appear at the first placeHow many different numbers can be formed?

Four-digit numbers are to be formed using the digits 1, 2, 3 and 4; an

1.	Four-digit numbers are to be formed using the digits 1, 2, 3 and 4; and none of these four digits are repeated in any manner.Further,1. 2 and 3 are not to immediately follow each other2. 1 is not be immediately followed by 33. 4 is not to appear at the last place4. 1 is not to appear at the first placeHow many different numbers can be formed?
A.	6
B.	8
C.	9
D.	None of the above
Answer» B. 8

Discussion

No Comment Found

Related MCQs

If every alternate letter of the English alphabet from B onwards (including B) is written in lower case (small letters) and the remaining letters are capitalized, then how is the first month of the second half of the year written?
25 English alphabets are listed below:V C F U MP O X S HJ Z A I EB L D K QN W G T YIf all the letters were to be arranged alphabetically which letter would not change its position?
If the following scrambled letters are rearranged to form the name of a city, which letter will appear in the middle? A I D M U R A
In the following series of numbers, find out how many times 1, 3 and 7 have appeared together, 7 being in the middle and 1 and 3 on either side of 7?2 9 7 3 1 7 3 7 7 1 3 3 1 7 3 8 5 7 1 3 7 7 1 7 3 9 0 6
In the following number order, how many times is an odd number followed by an even number but not an odd number before it?8 2 7 8 6 3 5 2 9 7 2 5 8 2 5 3 6 6 1 4 6 3 9
If all the vowels are removed from the English alphabet, which letter would be ninth to the right of the sixth letter from the left?
How many odd numbers are there in the following series which are immediately preceded by two even numbers?9, 8, 6, 4, 2, 7, 5, 6, 7, 3, 2, 1, 9, 4, 2, 3, 3
How many total fruits will be in the basket at the end of above order sequence?
How many different 5-letter words (with or without meaning) can be constructed using all the letters of the word DELHI' so that each word has to start with D and end with I?
In the following sequence, how many letters are followed by a number and then a symbol? Y4&L>2G7W^TZ*K6S7TH6$E&([email protected]+?QJ*3P9?#5YH%7B8<6

Discussion

No Comment Found

Related MCQs

Reply to Comment