Math, asked by khushiarya8690, 11 months ago

in a class test the sum of Shefali Shefali marks in mathematics and English is 38 she got two marks more in maths and three marks lesson English the product of their marks would have been 210 find the marks in the two subjects​

Answers

Answered by krishtiwari07
8

Let the marks in Maths be x.

Then, the marks in English will be 30 - x.

According to the question,

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

(x + 2)(27 - x) = 210

⇒ -x2 + 25x + 54 = 210

⇒ x2 - 25x + 156 = 0

⇒ x2 - 12x - 13x + 156 = 0

⇒ x(x - 12) -13(x - 12) = 0

⇒ (x - 12)(x - 13) = 0

⇒ x = 12, 13

If the marks in Maths are 12, then marks in English will be 30 - 12 = 18

If the marks in Maths are 13, then marks in English will be 30 - 13 = 17

Answered by ashishchackooom
2

Answer:refer to the attachment below

Step-by-step explanation:

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