Question

la a class test, the sum of Shefalis 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.
solve by formula method
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Answer 1

Answer:

Let Shefalis marks in mathematics= x

Given that sum of Shefalis marks in English and mathematics is 30

= Marks in math = Marks in English = 30

x+ Mark in English=30

Marks in English= 30 - x

Also, it is given that

Had she got 2 marks more in math and 3 marks less in English the product of their marks would have been 210

= (Marks in math +2) × (Marks in English- 3)= 210

(x+2) ( 30- x -3) =210