Consider the following statements about the Schengen

I. 3x² = 2x² + 9x – 20

II. 3y² = 75

Quantity I: The price of rice is decreased by 30%, by how much % the consumption is increase so that the expenditure will decreased by 10%?

I. 165x² + 97x + 10 = 0

II. 117y² - 163y + 56 = 0

I. 18p²- 21p + 6 = 0      

II. 16q² - 24q +9 = 0

I. 63x²+ 148x + 77 = 0

II. 21y²+ 89y + 88 = 0

I. 6 y² + 11 y – 7= 0

II. 21 x² + 5 x – 6 = 0

I. (x^13/5 ÷7) = 5488 ÷ x^7/5

I. 2x² - 12x + 16 = 0    

II. 4y² - 8y  - 12 = 0    

I. (2x-3)³+  1/((2x-3)³)=2 

II.   4y²+(y+8)^2= 157

I. 2x² + 15 x - 27 = 0

II. 3 y² + 25 y - 18 = 0