In how many ways can four children be made to stand in a line such that two of them A

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Previous Question: In an examination, there are three subjects A, B and C. A student has to pass in each subject. 20% students failed in A, 22% students failed in B and 16% failed in C. The total number of students passing the whole examination lies between [UPSC 2009(CS-P)] 1) 42% and 84% 2) 42% and 78% 3) 58% and 78% 4) 58% and 84% Next Question: P, Q, R and S are four men. P is the oldest but not the poorest. R is the richest but not the oldest. Q is older than S but not than P or R. P is richer than Q but not than S. The four men can be ordered (descending) in respect of age and richness, respectively, as: [UPSC 2010 (CS-P)] 1) PQRS, RPSQ 2) PRQS, RSPQ 3) PRQS, RSQP 4) PRSQ, RSPQ

(#M40023617) UPSC question Mental Ability Keep an EYE

In how many ways can four children be made to stand in a line such that two of them, A and B are always together? [UPSC 2010 (CS-P)]
a) 6
b) 12
c) 18
d) 24: Asked In UPSC MAN (11 years ago); Unsolved Read Solution (1); Is this Puzzle helpful? (4) (1) Submit Your Solution

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Latest UPSC Aptitude Question SOLUTION: In how many ways can four children be made to stand in a line such that two of them, A and B are always together? [UPSC 2010 (CS-P)] a) 6 b) 12 c) 18 d) 24

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(#M40023617) UPSC question Mental Ability Keep an EYE

In how many ways can four children be made to stand in a line such that two of them, A and B are always together? [UPSC 2010 (CS-P)]
a) 6
b) 12
c) 18
d) 24

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