Example 1 - Chapter 4 - Class 10 | Quadratic Equations | NCERT Maths | CBSE

preview_player
Показать описание
******* Part 1 *******
00:00 Defining variables
00:55 Forming 1st equation
01:11 Forming 2nd condition
02:25 Converting to Quadratic Equation
******* Part 2 *******
00:00 Question explained
06:17 Solution

Example 1 : Represent the following situations mathematically:
(i) John and Jivanti together have 45 marbles. Both of them lost 5 marbles each, and the product of the number of marbles they now have is 124. We would like to find out how many marbles they had to start with.
(ii) A cottage industry produces a certain number of toys in a day. The cost of production of each toy (in rupees) was found to be 55 minus the number of toys produced in a day. On a particular day, the total cost of production was Rs 750. We would like to find out the number of toys produced on that day.

In this tutorial, you will find the explanation of the following:
Example: 1
Class: 10th
Chapter: 4, Quadratic Equations
Textbook: NCERT

Рекомендации по теме
Комментарии
Автор

Saach me underrated channel he...
Hope You Grow Fast.. 🎉❤

Harshad_Guptabgdgjdef
Автор

2:48 sir hun X = 45-y bhi le sakte Hai na ?

bharatkapri
Автор

Sir in 8:20 when 750 is transposed to the other side it will become -750.Please correct me if Im wrong

Akshithedits
Автор

Sir you need to make an some basic concepts of this ch like what are quadratic equation and what type of equation is not quadratic equation and also what are the roots of the quadratic equation you always made such type of videos while starting a new ch but you have not made an introduction video for this chapter. I think after this comment you will made an introductory part of this ch

starfact
Автор

Sir I didn't understand the fact that in question they asked to form equations so we got x+y=45, (x-5)(y-5)=124 so we already got equations right so we can leave the answer here right but what is the reason you made 1st equation as y=45-x and put it in 2nd equation and at last you got x^2-45x+324=0 why cant we leave the answer when we got 1st and 2nd equations

jask
Автор

Sir ye is chapter ka 1st lecture hai na

vishalgoyaal