I. 3x2-19x+20=0 II. 16y2-28y-8=0
I. 3x2-19x+20=0
3x2-15x-4x+20=0
3x(x-5)-4(x-5)=0
(x-5)(3x-4)=0
x=5, 4/3
II. 16y2-28y-8=0
16y2-32y+4y-8=0
16y(y-2)+4(y-2)=0
(y-2)(16y+4)=0
y=2, -1/4
I. 30x2+36x+6=0; II. 30y2+11y+1=0
I. 4x2-11x-15=0 II. 8Y2-2Y-6=0
I. 6x2- 14x+8=0; II. 3y2-13y+12=0
100 kg rice is sold partially at 10% profit. Remaining is sold at 20% profit. If the total profit on this selling is 12%, then what quantity of rice he sold at 20%
In a library 40% books are in English. Out of 40% of the remaining books are in Hindi and the remaining books are in Oriya. If 4800 books are in Hindi, then what is the total number of books on library