Quantitative Aptitude - Arithmetic Ability Questions

What number should be added to each of 4, 16, 18 and 58 so that the resulting numbers will be in proportion in the given order?

What should be the missing digit so that the number 275_476 becomes exactly divisible by 11?

If x - y = -8 and xy = 45, then (x2 + y2) is

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

What are the co­ordinates of the centroid of a triangle, whose vertices are A(­2,­5), B(4,­4) and C(7,3)?

If 9x - 6(3 - x) = 12, then the value of x is

Ages of Lalu and Balu are in the ratio of 1 : 2. After 7 years their ages ratio changes to 3 : 5. The elder person age is

An object travels 24 m in 3 s and then another 15 m in 2 s. What is the average speed of the object?