Get a Bank job - Get 280 IBPS mocks (closest to actual exam) at just Rs. Let the speed of boat in still water be x km/hr & let the speed of stream be y km/hr

Example 19 A boat goes 30 km upstream and 44 km downstream in 10 hours. A speedboat, whose speed in 15 km/hr in still water goes 30 km downstream and comes back in a total of 4 hours 30 minutes. A boat covers 14 kms in upstream and 20 kms downstream in 7 hours. In 6 hours, the distance covered in upstream is 12km and downstream is 36km.

Speed downstream = (u + v) Speed upstream = (u - v) Substitute in equation (1), => 54 - 24 = 30 kms downstream travelled in 2.50 hours. Solving these two simultaneous equations will give values of s and r. The speed of a boat is 18 km/hr in upstream and the speed of the stream is 6 km/hr. let speed of boat be 'b'speed of stream be's'speed upstream = b-sspeed downstream= b+snow form 2 eqns using (b+s) and (b-s) and solve thems= 2 kmph and b= 22 kmphtherefore, speed downstream= b+s = 24 kmph, Let, speed downstream =x =speed of boat +speed of stream speed upstream =y=speed of boat -speed of stream, Now form 2 equations in x and y by equating Distance/Speed =Time, 2nd Floor, Above Ghanshyam Super Market,Botanical Gardens Road, Sri Ramnagar - Block B,Kondapur, ©2020 Chaya Education Pvt Ltd | A boat can go 20km downstream and 30 km upstream in 2hours 20minutes.Also it can go 10km downstream and 8km upstream in 49minutes.What is the speed of boat downstream in km/h? 5. What is the speed of the stream in km/hr? Find the speed of the boat in still water and of that the stream. To find: The boat speed and water current.

asked Nov 6, 2017 in Class X Maths by priya12 ( -12,631 points)

In 13 hours, it can go 40 km upstream and 55 km down-stream. Terms and Conditions | Find the speed of the boat in still water and of that the stream. Privacy Policy. Solution: Consider that speed of boat = u .

Also it covers 22 kms upstream and 34 kms downstream in 10 hours.

A motor boat whose speed is 24 km/hr in still water takes 1 hr more to go 32 km upstream than to return downstream to same spot.

Solution: Upstream speed = 18 Speed of the stream (S) = 6 According to the formula, Upstream = B - S 18 = B – 6 Speed of the boat (B) = 24 Now, Downstream = B + S = 24 + 6 = 30 km/hr (answer) 6. A motor boat whose speed is 18 km/h in still water takes 1 hour more to go 24 km upstream than to return downstream to the same spot. And speed of water current =v . Find the speed of the stream. Speed of boat in upstream is 16 km Speed of boat in downstream is 6 km. find out the speed of the boat in downstream.

36 kms upstream and 24 kms downstream in 6.5 hours. Determine the speed of the stream and that of the boat in still water. 249. Also it covers 22 kms upstream and 34 kms downstream in 10 hours.

The speed of a man is 18 km/hr downstream and 10 km/hr …

(DS - US)/2 = (12 - 8)/2 = 2 kmph is speed of current.

Sir lease explain me how to solve the problems of upstream and downstream A boat covers 14 kms in upstream and 20 kms downstream in 7 hours. 2.5 km/hr 3.5 km/hr

A boat can go 20km downstream and 30 km upstream in 2hours 20minutes.Also it can go 10km downstream and 8km upstream in 49minutes.What is the speed of boat downstream in km/h? (DS + US)/2 = (12 + 8)/2 = 10 kmph is speed of boat.

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