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. 2x2+19x+45 = 0
II. 2y2+11y+12 = 0
⇒ 2x2+10x+9x+45 = 0
⇒ 2x(x+5)+9(x+5) =0
⇒ (x+5) (2x+9) = 0
⇒ x=-5,-9/2
⇒2y2+8y+3y+12=0
⇒2y(y+4)+3(y+4) =0
⇒(y+4)(2y+3)=0
⇒y = -4, -3/2
∴ x < y
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
(674.87+59.98)÷35.02 = ?
39.97% of 649.8 ÷ 13.05 = 45.12 -