Aptitude and Reasoning Questions

The pie chart shows the number of students enrolled in the various engineering courses that a certain college offers. Study the diagram and answer the following questions.

The measure of the central angle of the sector representing the Electrical course is ________ degrees.

Pipes A, B and C are attached to an empty cistern. While the first two can fill the cistern in 4 and 10 hrs, respectively, the third can drain the cistern, when filled, in 6 hrs. If all the three pipes are opened simultaneously when the cistern is half-full, how many hours will be needed to fill the cistern?

Five people P, Q, R, S and T visit an office on certain days of a week. They work as a plumber, carpenter, cook, electrician and doctor in random order. A person pursues only one profession and visits the office only one day in the week. Consider the following information and answer questions based on it.

1. The plumber visits office every Monday.
2. P is an electrician who comes neither on Tuesday nor Thursday.
3. T is a carpenter and R is not plumber
4. The person who visits the office on Thursday is not a doctor.
5. S works on a Tuesday and T works on the following day.

Who is the plumber?

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.

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

Arctic Ocean, Southern Ocean (Antarctic ocean), Indian Ocean, ?

The compound interest on Rs. 4000 for 4 years at 10% per annum will be

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) Children start writing with a pen in sixth standard.
(II) Ink pen is prescribed by most of the schools for school kids to write with as it maintains the handwriting and comfort of child.

Conclusions:
(I) Till fifth standard kids are unable to use pen on their own completely.
(II) Ink pen maintains a proper flow of ink on paper and takes less effort to put words on paper.

The lengths of two diagonals of a rhombus are 24 cm and 32 cm. What is the side (in cm) of the rhombus?