Quantitative Aptitude - Arithmetic Ability Questions

If sec2θ+tan2θ=3, then sec4θ-tan4θ =

The points A(x,2), B(­2,1) and C(6,­3) are collinear. Find x?

If two successive discounts of 30% and 10% are given, then what will be the ratio of marked price to selling price?

The LCM of 72 and 84 is:

In a triangle XYZ , which of the following conditions is true

In a class of 55 students there are 34 girls. The average weight of these girls is 51 Kg and average weight of the full class is 55.2 kgs. What is the average weight of the boys of the class?

The average marks obtained by Raghav in 12 tests is 24. Zubeida has maintained an average of 23 so far but has taken only 9 of the tests. If each test is out of 30, at least how much Zubeida score in any one of the remaining three tests to still have a chance to match Raghav's performance?

The cube of 997 is