Directions (next six questions): In these questions, two equations numbered I and II are given. You have to solve both the equations and mark the appropriate option.
I. 4x2+19x+22=0
II. 2y2+11y+15=0
4x2+8x+11x+22=0
4x(x-2)+11(x+2)=0
(x+2)(4x+11)=0
⇒ x=-2,-11/4
2y2+11y+15=0
2y2+6y+5y+15=0
2y(y+3)+5(y+3)=0
(y+3)(2y+5)=0
⇒ y=-3,-5/2
ஃ Relationship between x and y cannot be determined.
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