Date: [Insert Date]
The Science Club is excited to announce an Inter-House Science Model-Making Competition for students of Classes IX – XII. Each house can register a maximum of 3 teams, with 2 members per team.
Date: [Insert Date]
Time: [Insert Time]
Venue: School Science Lab
Interested students should submit their names to their respective House Captains by [Registration Deadline]. Exciting prizes await the winners! For more details, contact the undersigned.
Mitali/Mukesh
President, Science Club
Letter Writing: A1 or A2. Do any one of the following: Situation:
Uncontrolled use of mobile phones and video games is affecting school-going children. As a result, they are suffering from many diseases. Imagine you are Saurabh/Shrushti, residing at Malad, Mumbai. You read the above clipping in the newspaper. Write a letter to the editor expressing your concern about this issue.
A racing track is built around an elliptical ground whose equation is given by \[ 9x^2 + 16y^2 = 144 \] The width of the track is \(3\) m as shown. Based on the given information answer the following: 
(i) Express \(y\) as a function of \(x\) from the given equation of ellipse.
(ii) Integrate the function obtained in (i) with respect to \(x\).
(iii)(a) Find the area of the region enclosed within the elliptical ground excluding the track using integration.
OR
(iii)(b) Write the coordinates of the points \(P\) and \(Q\) where the outer edge of the track cuts \(x\)-axis and \(y\)-axis in first quadrant and find the area of triangle formed by points \(P,O,Q\).