A car is travelling at a uniform speed.
The driver sees a milestone showing a 2-digit number. After travelling for an hour the driver sees another milestone with the same digits in reverse order.
After another hour the driver sees another milestone containing the same two digits as in the first one but the two digits separated by a zero(0).
What is the speed of the car?
3) 3 bulbs in the 3rd floor and switches in the 1st floor.u r in the 1st floor.u've 2
know which switch belongs 2 which bulb.its not in order.u can go up once an u can
switch on once.how wil u do it?
1)four persons take 1,2,5,10 minuits respectively ,
when two persons are going the will take the time of the slowest
person
whats the time taken to cross allof them with in a minimum time of 17 minutes