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Numerical Ability
Permutation and Combination
Find the 32nd wordin the list where the word MONOS IS permuted in all posiblities ways and arranged in alphabetical order
Read Solution (Total 5)
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- 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 - 7 years agoHelpfull: Yes(11) No(1)
- 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
- 9 years agoHelpfull: Yes(6) No(34)
- justify it clearly..... can't understand
- 8 years agoHelpfull: Yes(4) No(1)
- 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 - 7 years agoHelpfull: Yes(2) No(5)
- ans: OSNOM .,.,.,.,.100
Verified. - 5 years agoHelpfull: Yes(0) No(1)
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