Quantitative Aptitude - Arithmetic Ability Questions

If cos2x + cos4x = 1, then tan2x + tan4x =

The bus fare between two cities is increased in the ratio 29:31. What is the increase in the fare, if the original fare is Rs 725

In a bag the ratio of red balls to green balls is 4 : 9. If 6 more green balls were added to the bag, the ratio of red balls to green balls would become 1 : 3. How many red balls are there in the bag?

In the following question, select the odd letters from the given alternatives.

The sum of 4x + 3y ­ 7z, x ­ y ­ z and ­2x ­ 3y + 4z is

If secA = x, then the value of x is

If 2x - 3 = 3x - 5, then the numerical value of (x - 3)2 is

Simplify 437bxaz / 23ab.