QUADRATIC EQUATIONS ( LECTURE 6)
18TH MAY LESSON 6 GOOD MORNING TODAYS LEARNING OUTCOMES I will be able to solve word problems based on age and marks How to solve Quadratic word problems Quadratic word problems We have seen how to solve the quadratic equations ,now lets take a look at the real world problem and how we can apply the quadratic equation formula to solve them Let start with an example "In a class test, the sum of shefali marks in Mathematics and English is 30. Had she got 2 marks more in Mathematics and 3 marks less in English, the product of their marks would have been 210. Find her marks in the two subjects." How to approach this Problem a) First we need to carefully read the problem and understand the situation. Here we need to find marks. Let us marks in Maths as x Then as per problem Marks in English would be = 30 − x 30 − x b) Now If she got 2 marks more,then Maths marks would = ( x+ 2 ) ( x − 2 ...