Directions (Next Five Questions) : In the given questions , two equations numbered I and II are given. You have to solve both the equations and
I. 2x2+11x+14=0
II. 2y2+15y+28=0
2x2+7x+4x+14=0
x(2x+7)+2(2x+7)=0
(x+2)(2x+7) = 0
x=-2, -7/2
2y2+7y+8y+28=0
y(2y+7)+4(2y+7) =0
y =-4, -7/2
So, x≥y
I. 9x2-45x+56=0
II. 4y2-17y+18=0
I. 4x2+16x+15=0
II. 2y2+3y+1=0
I. 2x2-7x+3=0
II. 2y2-7y+6=0
8 years ago, Jyoti’s age was equal to the Swati’s present age. If the sum of Jyothi’s age 10 years from now and swati’s age 6 years ago is 88 years. What is the Kusum’s age 14 years ago if kusum is 8 years younger to Swati ? (in years)
In what respective ratio two varieties of rice costing INR 36 per kg and INR 60 per kg be mixed; so that by selling the mixture of INR 54 per kg 20%profit is earned?