A BOAT COVER 32 KM UPSTREAM AND 36 KM DOWNSTREAM IN 7 HOURS .ALSO ,IT COVERS 40 KM UPSTREAM AND 48 KM DOWNSTREAM IN 9 HOURS .THE RATIO OF SPEED OF BOAT IN STILL WATER AND SPEED OF THE STREAM IS ?
Infinity is a floorless room without walls or ceiling.
Unknown
There is something I don't understand about algebra: It has been around for thousands of years, yet no one has ever found out what the value of "x" or "y" really is.