Directions (next five 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. x2 = 16
II. 2y2-17y+36=0
I. x2 = 16 ⇒ x = ± 4 ⇒ x = 4, -4
⇒ 2y(y-4)-9(y-4) = 0
(2y-9)(y-4)( = 0
⇒ y = 9/2,4
∴ x ≤ y
I. 3x2-13x+12 =0
II. 2y2-15y+28=0
I. 2x2+19x+45 = 0
II. 2y2+11y+12 = 0
Present age of Bob is equal to Abby's age 8 years ago, Four years hence, the respective ratio between Bob's age and Abby's age will be 4:5 at that time. What is Bob's present age
'A' bought a certain quantity of oranges at total cost of INR 1200/-. He sold 1/3rd of those oranges at 20% loss. If A earns an overall profit of 10%, at what percent profit did A sell the rest of the oranges
INR 6100/- was partly invested in Scheme A at 10% p.a. compound interest (compounded annually) for 2 years and partly in Scheme B at 10% p.a. simple interest for 4 years. Both the schemes pay equal interests. How much was invested in Scheme A