Exams

The external and the internal radii of a hollow right circular cylinder of height 15 cm are 6.75 cm and 5.25 cm respectively. If it is melted to form a solid cylinder of height half of the orignal cylinder, then the radius of the solid cylinder is

In the following question, two statements are given each followed by two conclusions I and II. You have to consider the statements to be true even if they seem to be at variance from commonly known facts. You have to decide which of the given conclusions, if any, follows from the given statements.

Statement:
(I) Glaciers are receding and the temperature rise of the world is more than last year this time.
(II) Pollution level of the Earth is rising a lot resulting in avalanches.

Conclusions:
(I) Pollution is resulting into hike in temperature of the world.
(II) Pollution is the only reason for depletion of the nature.

Find the total surface area (in cm2) of a cuboid of length, breadth and height of 10.5 cm, 8 cm and 9 cm respectively.

The pie chart shows the share of tiger population in six wild life sanctuaries (A, B, C, D, E, F) of a country. Study the diagram and answer the following questions.

If the total tiger population in these six sanctuaries had grown by 20% and 25% in the previous two decades, then what was the total tiger population in these six sanctuaries before 20 years?

If tan (5x ­- 10°) = cot (5y + 20°), then the value of x + y is

Short run marginal cost curve cuts the short run average cost curve from _______ at the minimum point of short run average cost.

From the given alternatives, select the word which CANNOT be formed using the letters of the given word.

Corporate

Which leader adopted Orthodox Christianity as the official religion of Russia?