# Class 12 Math – Ten Most Important Questions by CBSE

6
10118 Class 12 Math Important Questions- In this post, we are going to provide you 10 most important questions of Class 12 Math exam. You should be knowing answers to these questions in all likelihood to score good marks in Class 11 Math exam.

CBSE Sample Papers for Class 12 2018

## CBSE Class 12 Math – Ten Important Questions

1. Sand is pouring from a pipe at the rate of 12 cm2/sec. The falling sand form a cone on the ground in such a way that the height of the curve is always one-sixth of the radius of the base. How fast in the height of the sand cone increasing when the height is 4cm?
2. Find the approximate change in the volume V of a cube of side ‘x’ metres caused by increasing the side by 2%.
3. Form the differential equation of the family of ellipses having foci on xaxis and centre at the origin.
4. If the sum of two unit vectors is a unit vector, show that magnitude of their difference is √3.
5. A die is thrown twice and the sum of the numbers appearing is observed to be 7. What is the conditional probability that the number 2 has appeared at least once?
6. Find the equation of the plane passing through the line of intersection of the planes 2x + y – z = 3 and 5x – 3y + 4z + 9 = 0 and is parallel to the line. 7. Evaluate: 8. Prove that: 9. For what value of k is the following function continuous at x = -p/6 ? 10. The monthly income of Aryan and Babban are in the ratio 3:4 and their monthly expenditure are in the ratio 5:7. If each saves Rs 15000 per month, find their monthly incomes using matrix method. Which value is reflected in this problem?

Class 12 Math Important Questions

If you are solving any of these questions, feel free to book a free session with one of Math tutors.

If you have any questions regarding these or any other questions, feel free to post them in the comment section below.

If you like these Class 12 Math Questions, say Thanks!!!

## More on Class 12 Math

Class 12 Mathematics – Ten Most Important Questions

CBSE Class 12 Math – Chapter wise Important Questions

CBSE Class 12 Math: Past 10 Years Question Papers

Get complete Class 12 study material

CBSE Sample Papers for Class 12 2018

CBSE 2017 Solved Question Papers for Class 12

How to Prepare for Board Exams Class 12

12th Biology Important Questions

CBSE Class 12 Question Paper 2016 Solved pdf

CBSE Class 12 Syllabus 2017-18

How to Calculate 12th Percentage

Physics Board Paper 2017 Solutions

Class 12 Math Important Questions

1. Naseer

Thank u so much

2. Ssaurabh

Thanks
Give the solution of 7 question

• School Topper

Kindly book a free session with our teachers. They will be happy to help you. To book an online tuition session, click on this link –
https://vagupu.com/viewTutors

3. Yashwant patidar

Thanku so much

4. Monika Sharma

5. Othelo