Quantitative Aptitude - Arithmetic Ability Questions

If x2+5x+6 = 0, then the value of 2xx2-7x+6 is

If sinA + sin2A =1 then what is the value of cos2A + cos4A

If cot 135° = x, then the value of x is

Simplify (533bxaz)/(41ab)

What is the value of a-b when a2+b2-6a-6b+18 = 0 ?

If x – 4y = 0 and x + 2y = 24, then what is the value of (2x + 3y)/(2x – 3y)?

In a bag, the ratio of red balls to green balls is 4:9. If 7 more red balls are added to the bag, the ratio of red balls to green balls will become 5:6. How many green balls are there in the bag?

Select the odd word/letters/number/number pair from the given alternatives.