Exams

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?

RHYTHM is related to MUSIC in the same way as DESIGN is related to

Six years ago, the ratio of the two persons P and Q was 3 : 2. Four years hence the ratio of their ages will be 8 : 7. What is P's age?

Average of the marks of 132 students of a college is 40. If the average of the marks of the passed students is 42 and the average of the marks of the failed students is 20, then what will be the respective ratio of the total marks of passed students and the total marks of failed students?

_____ is the source of energy and materials in human beings.

In the following question, a sentence has been given in Active/Passive Voice. Out of the four alternatives suggested, select the one which best expresses the same sentence in Passive/Active Voice.

Marketing professionals play a major role in the development of business sectors.

In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.

The second strategy proposed __________________ the committee was institutional reform of police processes, including investigation of crimes, professionalization and ________________ of court systems with induction of technology _____________ limiting appeal procedures to the _________________ required. It is here the committee ___________________ to bring in a bigger and responsible role to victims of crime in the whole proceedings.

The second strategy proposed __________________ the committee

An engineering student has to secure 25% marks to pass. He gets 45 and fails by 45 marks. Find the maximum marks.