Latest MEC Aptitude Question SOLUTION: Find the 32nd wordin the list where the word MONOS IS permuted in all posiblities ways and arranged in alphabetical order

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(#M40152825) MEC Numerical Ability question Keep an EYE

Find the 32nd wordin the list where the word MONOS IS permuted in all posiblities ways and arranged in alphabetical order

Asked In MEC vpvignesh (9 years ago)

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vinuppriya  (7 years ago)

Ans: ONMSO
Arranging in alphabetical order MNOOS=5!/2!=60 ...... (1-60)
M_ _ _ _ CAN BE ARRANGED IN 4!/2!=12 WAYS (1-12) (M IS ALREADY PLACED REMAINING NOOS IS NEED TO PLACE, HERE WE HAVE "O" IN TWICW TIME SO WE DIVIDE IT BY 2!)
N_ _ _ _ CAN BE ARRANGED IN 4!/2!=12 WAYS (13-24)
O_ _ _ _ CAN BE ARRANGED IN 4! =24 ways (25-48) (HERE WE PLACED ONE "O" ALREADY, THE REMAINING MNOS WANT TO PLACE , HERE WE HAVE NO REPEATED WORD IN "MNOS", SO WE DONT USE 2! AS DIVISOR)
OUR NEEDED NO 32 IS IN GIVEN RANGE (25-48)
OM_ _ _CAN BE ARRANGED IN 3!=6 (25-30)
ON_ _ _CAN BE ARRANGED IN 3!=6 (31-36)
0NM_ _ CAN BE ARRANGED IN 2!=2 (31,32)
ONMOS ...........31
ONMSO..............32

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Ahsan Fatma  (9 years ago)

Ans: ONMSO
Arranging in alphabetical order MNOOS
M_ _ _ _ CAN BE ARRANGED IN 4!/2!=12 WAYS
N_ _ _ _ CAN BE ARRANGED IN 4!/2!=12 WAYS (12+12=24)
O_ _ _ _ CAN BE ARRANGED IN 4!/2!=12 WAYS (12+12+12=36) OUT OF BOUND
OM_ _ _CAN BE ARRANGED IN 3!=6 WAYS(12+12+6=30)
30TH WORD IS OMSON
31ST WORD IS ONMOS
32ND WORD IS ONMSO

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satheeshkumar  (8 years ago)

justify it clearly..... can't understand

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amar  (7 years ago)

Ans: OSMNO
Arranging in alphabetical order MNOOS
M_ _ _ _ CAN BE ARRANGED IN 4!/2!=12 WAYS
N_ _ _ _ CAN BE ARRANGED IN 4!/2!=12 WAYS (12+12=24)
O_ _ _ _ CAN BE ARRANGED IN 4!/2!=12 WAYS (12+12+12=36) OUT OF BOUND
OM_ _ _CAN BE ARRANGED IN 3!=6 WAYS(12+6=18)
ON_ _ _ CAN BE ARRANGED IN 3!=6WAYS(18+6)=24
OS_ _ _ CAN BE ARRANGED IN 3!=6ways(24+6)=30
OSMN _ CAN BE ARRANGGED IN 1!=1ways(30+1=31ways)
OSMNO CAN BE ARRANGED IN 1!=1Ways(32ways)
32ND WORD IS OSMNO

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gowtham  (5 years ago)

ans: OSNOM .,.,.,.,.100

Verified.

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