Quantitative Aptitude - Arithmetic Ability Questions

If x - y = 6 and xy = 40, then find x2 + y2 ?

If a+1b= b+1c = c+1a (a , b, c are not equal) then the value of abc = 

If sin3A = x, then value of x is

In a trapezium, one diagonal divides the other in the ratio 2 : 9. If the length of the larger of the two parallel sides is 45 cm, then what is the length (in cm) of the other parallel side?

cot3A is equal to

5 bottles cost as much as 2 bags. The cost of 15 bottles and 4 bags is Rs 2,000. What is the price (in Rs.) of a single bag?

If x + (1/x) = 2, then what is the value of x64 + x121?

The average age of 24 students is 12 years. It was observed that while calculating the average age, the age of a student was taken as 14 years instead of 8 years. What will be the correct average age (in years)?