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.(3M)
Answers
Answer:
50
Step-by-step explanation:
10x5=50
Given : 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.
To Find : score in the first test.
Solution:
score in the first test. = M
Score in second test = M + 10
5 times the score of the second test is the same as square of the score in the first test.
=> M² = 5(M + 10)
=> M² - 5M - 50 = 0
=> M² - 10M + 5M - 50 = 0
=> M(M - 10) + 5(M - 10) = 0
=> ( M + 5)(M - 10) = 0
=> M = - 5 , M = 10
Ignoring the negative marks
Hence score in the first test = 10 Marks
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