Question

In a class test the sum of the marks obtained by P in mathematics and science is 28 had he got three more marks in maths and four marks less in science the product of marks obtained in the two subjects would have been 180 find the marks obtained by him in the two subjects separately

Answer 1

Answer:

Step-by-step explanation:

Let marks in maths be x

Therefore, marks in science= 28-x

According to question,

(x+3) (28-x-4) =180

(x+3) (24-x) =180

x^2 - 21x + 108 =0

x^2 -9x-12x +108=0

x(x-9) -12(x-9) = 0

(x-9) (x-12) = 0

x= 9,12