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Shubham Agrawal
IIT Roorkee Grad. IIM L |Dropout. SBI PO 2017 Topper and Dropout. Full Time Educator.

U
Unacademy user
very nice initiative. helps a lot after reading newspapers.
  1. About Me Shubham Agrawal IIT Roorkee 2013 graduate IIM Dropout SBI PO under 100 ranker (dropout) Left job to pursue my passion- Education


  2. Linear Equation with 1 variable


  3. Applications Q. 5/7 of 4/15 of a number is 8 more than 2/5 of 4/9 of the same number. What is half of that number?


  4. Applications Q. 5/7 of 4/15 of a number is 8 more than 2/5 of 4/9 of the same number. What is half of that number? 2 l i S


  5. Linear Equation with 2 variables


  6. Concept Usually of the form ax + by +c o Represents a line in x y plane For every value of x, there's a corresponding value of


  7. Concept If there are 2 equations of the form 1st Method 2 2. 25 , b CA 2 2. 2.


  8. Question -2


  9. Question


  10. Concept If there are 2 equations of the form 2nd Method Subtract or add one equation with the other to eliminate either x or y


  11. Question -2


  12. Applications Q. The sum of the digits of a two digit number is 16 If the number formed by reversing the digits is less than the original number by 18. Find the original umber.


  13. Applications Q. The ratio of the ages of the father and the son at present is 3: 1. Four years earliar, the ratio was 4: 1. What are the present ages of the son and the father? 2 Methods:


  14. Quadratic Equatiorn


  15. Concept . Degree (or power) of one variable is 2 General form: ax2 + bx +c0 where a, b and c are all real numbers and a 0. Example: 2x2 - 5x + 3 0


  16. Question Q. Solve 2x2 + 6 7x 2 1 -3 2 3 2