Quantitative Aptitude - Arithmetic Ability Questions

For what value of 'y', x2 + 112x + y2 is a perfect square?

If 4x2 - 12x + k is a perfect square, then the value of k 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

Diameter of wheel of a cycle is 21 cm. The cyclist takes 45 minutes to reach a destination at a speed of 16.5 km/hr. How many revolutions will the wheel make during the journey?

In an isosceles triangle ABC, AB = AC, XY || BC. If ∡A = 30, then ∡BXY =

A regular hexagonal base prism has height 8 cm and side of base is 4 cm. What is the total surface area (in cm2) of the prism?

What is the value of (tan45° + 1/√2) ?

In the given Pie-chart, the comparative study of the production of Rice, Wheat, Sugar and Tea of a country is given. Study the Pie-Chart and answer the following questions.

From this diagram, the ratio of sum of wheat and sugar production to difference in production of rice and tea is