Latest M4maths Aptitude Question SOLUTION: abcd is a 4 digit nbr if we multiply it by 9 then it reverse it position i.e., dcba [abcd*9=dcba] can any tell what is the answer and a!=b!=c!=d

• Placement Papers
• /
• M4maths
• /
• Numerical Ability
• /
• Time Distance and Speed

M4maths Question Papers:

(#M40165280) M4MATHS Numerical Ability question number game Keep an EYE

abcd is a 4 digit nbr if we multiply it by 9 then it reverse it position i.e., dcba
[abcd*9=dcba]
can any tell what is the answer and a!=b!=c!=d

Asked In M4maths priyanshu sharma (6 years ago)

Unsolved Read Solution (2)

Is this Puzzle helpful?   (4)   (1) Submit Your Solution Time Distance and Speed

Read Solution (2) :

karan  (5 years ago)

This question is not correct as due to given condition a!=b!=c!=d
because value of d cant be greater than 9 so it means factorial not more than 3 as we require four digit number otherwise it will become 5digit number
proof
let a=1
abcd=1111 dcba=1111 incorrect
let a=2 than
abcd 2222 dcba= 2222 incorrect
let a=3
abcd 3336 dcba = 6333
multiply abcd by 9
it will be 30024 incorrect
if a=4
so abcd 44412 not possible

Is this solution Helpfull? Yes (2) | No   

vishnu  (5 years ago)

the number is 1089. 1089*9=9801

Is this solution Helpfull? Yes | No (2)  

Please Login to Read Solution.