50 points
Time management is very much important in IIT JAM. The eduncle test series for IIT JAM Mathematical Statistics helped me a lot in this portion. I am very thankful to the test series I bought from eduncle.
Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
- SSC
- Quantitative Aptitude
Q. A hydrogen filled balloon ascending at the raof 18 kmph was drifted by wind. Its angle of elevation at 10th and 15th minutes were found to be 60" and 45 resp
Q. A hydrogen filled balloon ascending at the raof 18 kmph was drifted by wind. Its angle of elevation at 10th and 15th minutes were found to be 60" and 45 respectively. The wind speed (in whole numbers) during the last five minutes, approximately, is equal to (a) 7kmph (c) 26kmph (b) 11kmph (d) 33kmph
0 Answer(s)
Answer Now
- 0 Likes
- 1 Comments
- 0 Shares
Do You Want Better RANK in Your Exam?
Start Your Preparations with Eduncle’s FREE Study Material
- Updated Syllabus, Paper Pattern & Full Exam Details
- Sample Theory of Most Important Topic
- Model Test Paper with Detailed Solutions
- Last 5 Years Question Papers & Answers
Sign Up to Download FREE Study Material Worth Rs. 500/-
Yogeshbishnoi30![best-answer]()
answer is 33kmph.. there will be two equations first being tan60=p¹/b¹ and second one is tan45=p²/b² we need to find the average velocity between last 5 mins. so the average velocity will be total displacement/total time. displacement we can find from the above two equations and the time is mentioned 5 mins