Quantitative Aptitude Ques 1489

Question: If $ 5x+8=x^{2}+P=4x+9. $ What is the value of P?

Options:

A) 18

B) 19

C) 12

D) 15

Show Answer

Answer:

Correct Answer: C

Solution:

  • $ 5x+8=4x+9 $

$ \Rightarrow $ $ x=1 $

$ \Rightarrow $ $ 5x+8=x^{2}+p $

$ \Rightarrow $ $ 5+8=1^{2}+p $ [putting $ x=1 $ ]

$ \Rightarrow $ $ p=12 $

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