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1. If y =2.5 x +4 and 15x-2 =40 then y=?

  • A. 36
  • B. 36
  • C. 36
  • D. 36

Answer: Option D

Explanation:

15x - 2 = 40

⇨ 15x = 42

 

y = 2 .5x + 4

⇨ 6y = 15x + 24

⇨ 6y = 42 + 24 = 66

⇨ y = 11

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