Quantitative Aptitude - Arithmetic Ability Questions

What is the reflection of the point (-1 , 5) in the line x = 1?

The third proportional of the following numbers (x - ­y)2, (x2 - y2)2 is

A regular square pyramid has side of its base 20 cm and height 45 cm is melted and recast into regular triangular pyramids of equilateral base of side 10 cm and height 10√3 cm. What are the total numbers of regular triangular pyramid?

The numbers x, y, z are respectively proportional to 2, 3, 5 and the sum of x, y and z is 80. If the number z is given by the equation z = ax­-8, then a is

If R019 is divisible by 11, find the value of the smallest natural number R?

A person bought an item for Rs. 1500 and sold it at a profit of 12%. What was the selling price of the item?

A number is greater than 58 times its reciprocal by 3/4. What is the number?

Diagonals of a Trapezium ABCD with AB || CD intersect each other at the point O. If AB = 2CD, then the ratio of the areas of ΔAOB and ΔCOD is