I.                     2x²-9x+9=0

II                     y²-7y+12=0

I                     4x²-8x+3=0

II                    4y²-15y+14=0

I                     3x²-13x+14=                 

II                    2y²-5y+3=0

I                     2x² – 21x +52 = 0

II                   2y² – 11y+12=0

Two mobile phones were purchased at the same price. One was sold at a profit of 30% and the second was sold at a price which was INR 2500/- less than the price at which the first was sold. If the overall profit earned by selling both the mobile phones was 5%, what was the cost price of one mobile phone

The distance between two places A and B is 140 km. First scooter departs from place A to B, at a speed of 50 km/h at 10 am. Second scooter departs from place B to A at a speed of 30 km/h at 12 pm. At what time will both the scooters meet each other