Answer / rajesh

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

Answer / kcs

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

Answer / ram

Rajesh is correct.
It mentiones clearly that the car is moving in a uniform
speed. hence we have to find a number ab (b - units place
and a - tens place, eg, in number 46, a = 4 and b = 6)such
that ba-ab = axb - ba. Only then the speed will be
uniform.. The only combination possible that way is 16,61
and 106. hence the average speed is 45 km/hr

Answer / krishna

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

the distance traveled between 1st mile stone and 2nd milestone is 61-16 = 45 and the distance traveled between 2nd and 3rd is 106-61 = 45 , so the average speed is 45 km/hr

Answer / kcs

45..... rajesh and ram are right

Answer / gireesh jayabalan

Rajesh & Ram are wrong .. b'coz think of the driver is going
from kanniyakumari to kashmir let it be Kashmir 1000miles
after few miles the driver will see kashmir 800 miles

after few miles he cud see Kashmir 600miles


...................


So while travelling from one place to another the distance
will decrease .. it won't increase

Answer / james bond

@krisha:how cud u take (100x+y). u can use only 2 digits for the third no. u cant add 0.......

Answer / sakshi

0
because car is running not the driver.

Answer / ramesh

I don't think Rajesh is correct....on which property based
he did the question.....bcoz at driver have to see only 2
digit number...

Answer / guest

the avg of the car is 30

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