Latest Infosys Aptitude Question SOLUTION: While traveling at uniform speed. U read a two digit no. after one hr the number is reversed order. After another hour the number read is same two digit number. What is the average

• Placement Papers
• /
• Infosys

Infosys Question Papers: Infosys Interview Experience(10) INFOSYS Company Profile

(#M40004689) INFOSYS question infosys latest puzzle Keep an EYE

While traveling at uniform speed. U read a two digit no. after one hr the number is reversed order. After another hour the number read is same two digit number. What is the average speed?

Asked In Infosys (13 years ago)

Unsolved Read Solution (2)

Is this Puzzle helpful?   (9)   (11) Submit Your Solution

Read Solution (2) :

Sukanta Mondal  (12 years ago)

Let 10'splace digit is x and unit's place digit y
First milestone : 10x+y
Second milestone : 10y+x
Third milestone : 100x+y
Since the speed is uniform so
Distance covered in first Hr = Distance covered in Second Hr
(10y+x)-(10x+y) = (100x+y)-(10y+x)
After solving, we get ----> y=6x but since x and y are digits so only possible combination is x=1 and y=6,
So average speed = 45 KM/HR

Is this solution Helpfull? Yes (21) | No (12)  

krishna9  (10 years ago)

Answer is 45.
Driver first sees 16 then 61 and then 106.
106-61=45
61-16=45

Is this solution Helpfull? Yes | No (2)  

Please Login to Read Solution.