Exams

Fire extinguishers emit which gas?

A and B together can do a piece of work in 36 days, B and C together can do it in 24 days. A and C together can do it in 18 days. The three working together can finish the work in

In the question a statement is given, followed by two arguments, I and II. You have to consider the statement to be true even if it seems to be at variance from commonly known facts. You have to decide which of the given arguments, if any, is a strong argument.

Statement : Should rock shows be allowed to run till midnight at tourist places?

Argument I : Yes, more tourists arrive due to rock shows. Tourism is good for local economy.
Argument II : No, local traditions are harmed due to tourism.

In the following question, out of the four alternatives, select the alternative which will improve the bracketed part of the sentence. In case no improvement is needed, select "no improvement".

Bonding with friends and extended family can be (uplifted).

A pipe, working at full speed, can fill an empty cistern in 1 hour. However, during the first hour it worked at one-twelfth of its capacity, during the second hour at one-ninth of its capacity, during the third hour at one-sixth of its usual capacity and during the fifth hour it was only one -third as efficient as it was supposed to be. A second pipe also displayed similar performance, but if it worked at full speed would have filled the empty cistern in 2 hours. Together with a drain pipe that drained water out of the tank at a constant rate, the empty cistern could be filled in 5 hours, all the three pipes working concurrently. How many hours will it take the drain pipe to empty the filled cistern if no other pipe was functioning during the time?

The circumference of a circle is 110 cm. Find its radius (in cm).

The bar graph shows the number of soldiers in the armies of different countries. Study the diagram and answer the following questions.

If country D spends $20000 per soldier annually, then how much does it spend (in $ millions) on all its soldiers annually?

PQRS is a square whose side is 16 cm. What is the value of the side (in cm) of the largest regular octagon that can be cut from the given square?