Question

ii) Suyash scored 10 marks more in second test than that in the first. 5 times
the score of the second test is the same as square of the score in the first
test. Find his score in the first test.
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Answer 1

Answer:

Let the score in the first test be x.

Suyash's score in second test is 10 more than that in the first.

So, his score in the second test = x+10

5 times the score of the second test is the same as square of the score in the first test.

5(x+10)=x2

⇒5x+50=x2

⇒x2−5x−50=0

⇒x2−10x+5x−50=0

⇒x(x−10)+5(x−10)=0

⇒(x+5)(x−10)=0

⇒x=10,−5

The score is not negative so, Suyash scored 10 marks in first test.

Answer 2

Answer:

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