harry

• May 19th, 2005

 

192

peter

• Jun 11th, 2005

 

200

nmodi

• Jul 17th, 2005

 

Ans. 384 Kms. 
Speed of boat = 10 Kmph; 
Let speed of river = x; 
Relative speed of boat in upstream = 10 - x; 
Relative speed of boat in downstream = 10 + x; 
Since, Distance = Velocity * Time; 
Distance upstream = (10 - x) * 24; 
Distance downstream = (10 + x) * 16; 
Distance upstream = Distance downstream; 
(10 - x) * 24 = (10 + x) * 16; 
therefore x = 2; 
Total distance = distance upstream + distance downstream; 
Total distance = (10 - x) * 24 + (10 + x) * 16; 
Total distance = 8 * 24 + 12 * 16 = 192 + 192 =384 Km  

nimmi

• Jul 27th, 2005

 

speed in still water=0.5(speed upstream+speed downstream) 
let distance be x kms. 
0.5((x/24)+(x/16))=10 
solving,distance x=192.

jaspreet(jagz)

• Feb 19th, 2006

 

D=16(10+x) =24(10-x) // D is the distance traveeled.. and x is the speed of the stream).......=>x=2 kmphthus D=192 km

nilu

• Aug 4th, 2006

 

192(right ans)

vishwa828

 Profile Answers by vishwa828 

• Dec 7th, 2006

 

hey the answer shoud be 192+192=384 since he asked for the distance covered....

imran4108_4u

 Profile Answers by imran4108_4u 

• Jun 14th, 2008

 

speed of boat in still water=10kmph
speed of upstream=d/24
speed downstream=d/16

speed of boat in still water=1/2(speed upstream+speed downstream)
10=1/2(d/24+d/16)


d=192 km