The sum of the reciprocals of Rehman’s ages, (in years) 3 years ago and 5 years from now is 1/3. Find his present age?
A man can row 30 km down stream and return in a total of 8 hours. If the speed of the boat in still water is four times the speed of the current, then the speed of the current is
In a fixed time, a boy swims double the distance along the current that he swims against the current. If the speed of the current is 3 km/hr, the speed of the boy in still water is
If the speed of a boat in still water is 20 km/hr and the speed of the current is 5 km/hr, then the time taken by the boat to travel 100 km with the current is :
Speed of a boat along and against the current are 14 kms/hr and 8 kms/hr respectively. The speed of the current is
A boat goes at 14 kmph along the stream and 8 kmph against the stream. The speed of the boat (in kmph) in still water is :
A boat covers 12 km upstream and 18 km downstream in 3 hours, while it covers 36 km up- stream and 24 km downstream in 6 hours. What is the speed of the current ?
A man rows a boat 18 kilometres in 4 hours down-stream and returns upstream in 12 hours. The speed of the stream (in km per hour) is :
When each side of a square was reduced by 2 metres, the area became 49 square metres. What was the length of a side of the original square?
A boat goes 6 km an hour in still water, but takes thrice as much time in going the same distance against the current. The speed of
the current (in km/hour) is :
നമുക്ക് ആവശ്യമുള്ള വിവരങ്ങൾ നല്കാൻ കഴിവുള്ള മൂന്നാമതൊരാളെ അന്വേഷകൻ സമീപിക്കുന്ന രീതി അറിയപ്പെടുന്നത്
ഒരിക്കൽ ചോദ്യാവലി തയാറാക്കി കഴിഞ്ഞാൽ, ആ ചോദ്യാവലി ഉപയോഗിച്ച് ഒരു ചെറിയ ഗ്രൂപ്പിൽ ഒരു മുൻപരിശോധന നടത്തുന്നത് അഭികാമ്യമായിരിക്കും. ഇതിനെ വിളിക്കുന്ന പേര്
ഒരു പ്രത്യേക ആവശ്യത്തിനോ ആവശ്യങ്ങൾക്കോ ആയി ഡാറ്റ ശേഖരിക്കുന്നതിന് യുക്തിപരമായി ക്രമീകരിച്ചിട്ടുള്ള ചോദ്യങ്ങളുടെ ശ്രേണിയാണ്
Two boats, travelling at 5 and 10 kms per hour, head directly towards each other. They begin at a distance 20 kms from each other. How far apart are they (in kms) one minute before they collide?
A boy rows a boat against a stream flowing at 2 kmph for a distance of 9 km, and then turns round and rows back with the current. If the whole trip occupies 6 hours, find the boy’s rowing speed in still water.
A boat covers a distance of 30 km downstream in 2 hours while it take 6 hours to cover the same distance upstream. If the speed of the current is half of the speed of the boat then what is the speed of the boat in km per hour?
A boat has to travel upstream 20 km distance from point X of a river to point Y. The total time taken by boat in travelling from point X to Y and Y to X is 41 minutes 40 seconds. What is the speed of the boat?
Speed of a speed-boat when moving in the direction parallel to the direction of the current is 16 km/hr. Speed of the current is 3 km/hr. So the speed of the boat against the current will be (in km/hr)
A man can row 6 km/hr. in still water. It takes him twice as long to row up as to row down the river. Find the rate of stream
A boat covers 1200 km distance whose downstream speed is y kmph and the speed of the boat upstream is 60% of the speed of the boat downstream. If the difference between the time taken by the boat upstream and downstream is 32 hours. Find the distance covered by the boat in 5 hours if they traveled with the speed of still water.
The total time by the boat to cover 72 km upstream and 180 km downstream in 16 hours. The total time taken by the same boat to cover 108 km upstream and 126 downstream in 16 hours. If the sum of the upstream speed and downstream speed of the boat is 30 km, then find the speed of the stream.
The time taken by the boat can travel 240 km distance along the stream is equal to the time taken by the boat can travel 144 km distance against the stream. The speed of the boat is 20 km/hr. Find the speed of the stream.
A boat takes 26 hours for travelling downstream from point A to point B and coming back to point C midway between A and B. If the velocity of the stream is 4 km/hr and the speed of the boat in still water is 10 km/hr, what is the distance between A and B?
Speed of a boat in standing water is 12 kmph and the speed of the stream is 3 kmph. A man rows to a place at a distance of 6300 km and comes back to the starting point. The total time taken by him is:
A man rows to a place 60 km distant and come back in 35 hours. He finds that he can row 4 km with the stream in the same time as 3 km against the stream. Find the speed in still water and in stream:
A man can row 40 kmph in still water and the river is running at 10 kmph. If the man takes 2 hr to row to a place and back, how far is the place?
The speed of a boat in still water is 15 km/hr. It can go 30 km upstream and return downstream to the original point in 4 hrs 30 min. The speed of the stream is:
A boatman goes 4 km against the current of the stream in 1 hour and goes 2 km along the current in 10 minutes. How long will it take to go 24 km in stationary water?