Latest TCS Aptitude Question SOLUTION: If A, X, Y, and Z are unique nonzero digits in the equation: XY* YX= AYZ And Y > X, the 2-digit number XY = ? a)13 b)21 c)23 d)24

• Placement Papers
• /
• TCS

TCS Question Papers: TCS Interview Experience(90) TCS Company Profile

(#M40012514) TCS question Keep an EYE

If A, X, Y, and Z are unique nonzero digits in the equation: XY* YX= AYZ And Y > X, the 2-digit number XY = ?
a)13
b)21
c)23
d)24

Asked In TCS sathyapriya (11 years ago)

Unsolved Read Solution (8)

Is this Puzzle helpful?   (4)   (0) Submit Your Solution

Read Solution (8) :

sathyapriya  (11 years ago)

ans:With abstract calculation problems, start with what you know. Here, you know a few things:
-you’re multiplying two 2-digit numbers and in doing so you’ll end up with a 3-digit number
-the units digit of the solution is different from the units digit of either number in the problem (which means you cannot use 1)
-the two numbers you’re multiplying are in the form that the digits are the same, just flipped
This means that A and B are both eliminated (you cannot have a units digit of 1, or the units digit in the answer would be either X or Y). And then try choice D: 42 * 24 is greater than 1000, so its answer will have more than three digits. The same, then, is true of choice E (52 * 25 is bigger than 42 * 24), so choice C is the only plausible answer.

Is this solution Helpfull? Yes (25) | No (1)  

tanushri godha  (11 years ago)

23...
x=2,y=3
23*32=736

Is this solution Helpfull? Yes (17) | No (3)  

lala  (11 years ago)

xy*yx=ayz
if we take 13*31 =403 here y=3 and z= 3 so this is wrong
in 21 y < x not valid by question
23*32=736 here a=7,x=2,y=3,z=6 all are unique so answer is
23 answer

Is this solution Helpfull? Yes (6) | No   

meghana  (11 years ago)

23 is the answer

Is this solution Helpfull? Yes (2) | No (1)  

k.m  (10 years ago)

check all options only c satisfied a given condition i.e 23*32=736 y in middle so answer is c.

Is this solution Helpfull? Yes (2) | No   

snehil  (11 years ago)

go with option only 23 full fill the con

Is this solution Helpfull? Yes (1) | No   

Shireesha  (11 years ago)

@tanushri,@lala 3 is repeating in the answr..how r they unique?

Is this solution Helpfull? Yes (1) | No   

lala  (11 years ago)

xy*yx=ayz
if we take 13*31 =403 here y=3 and z= 3 so this is wrong
in 21 y

Is this solution Helpfull? Yes | No (3)  

Please Login to Read Solution.