No products in the cart.

Ritu can row downstream 20km in …

CBSE, JEE, NEET, CUET

Question Bank, Mock Tests, Exam Papers

NCERT Solutions, Sample Papers, Notes, Videos

Ritu can row downstream 20km in 2hour and upstream 4km in 2hour. find her speed of rowing in still water and the speed of the current..

Posted by Rakesh Pradhan 7 years, 4 months ago

CBSE > Class 10 > Mathematics

2 answers

Dibya Ranjan Das Das 7 years, 4 months ago

Let the speed of boat be X km/hr. And speed of current be Y km/hr. Time=Distance/Speed Speed in downstream=x+y km/hr. Speed in upstream=x-y km/hr. ATQ,20/x+y=2 2(x+y)=20 x+y=10.................eq.1 4/x-y=2 2(x-y)=4 x-y=2..................eq.2 Adding 1&2 x+y=10 x-y=2. _________ 2x=12 x=6 Putting value of x x-y=2 Y=4

0Thank You

..... ...... 7 years, 4 months ago

6 km/hr and 4 km/hr respectively.

0Thank You

ANSWER

Test

Related Questions

(A + B )²

Posted by Abhishek Gupta 1 month, 2 weeks ago

CBSE > Class 10 > Mathematics

1 answers

sin60° cos 30°+ cos60° sin 30°

Posted by Vanshika Bhatnagar 1 year, 4 months ago

CBSE > Class 10 > Mathematics

2 answers

This content has been hidden. One or more users have flagged this content as inappropriate. Once content is flagged, it is hidden from users and is reviewed by myCBSEguide team against our Community Guidelines. If content is found in violation, the user posting this content will be banned for 30 days from using Homework help section. Suspended users will receive error while adding question or answer. Question comments have also been disabled. Read community guidelines at https://mycbseguide.com/community-guidelines.html

Few rules to keep homework help section safe, clean and informative.

Don't post personal information, mobile numbers and other details.
Don't use this platform for chatting, social networking and making friends. This platform is meant only for asking subject specific and study related questions.
Be nice and polite and avoid rude and abusive language. Avoid inappropriate language and attention, vulgar terms and anything sexually suggestive. Avoid harassment and bullying.
Ask specific question which are clear and concise.

Remember the goal of this website is to share knowledge and learn from each other. Ask questions and help others by answering questions.

Posted by Hari Anand 6 months ago

CBSE > Class 10 > Mathematics

0 answers

X-y=5

Posted by Kishan Thakur 4 weeks, 1 day ago

CBSE > Class 10 > Mathematics

1 answers

Venu Gopal has twice

Posted by Lakshay Kumar 1 year ago

CBSE > Class 10 > Mathematics

0 answers

Don't post personal information, mobile numbers and other details.
Don't use this platform for chatting, social networking and making friends. This platform is meant only for asking subject specific and study related questions.
Be nice and polite and avoid rude and abusive language. Avoid inappropriate language and attention, vulgar terms and anything sexually suggestive. Avoid harassment and bullying.
Ask specific question which are clear and concise.

Remember the goal of this website is to share knowledge and learn from each other. Ask questions and help others by answering questions.

Posted by Kanika . 4 weeks, 1 day ago

CBSE > Class 10 > Mathematics