Time and Distance General Aptitude:

Time and distance is an important concept in general aptitude tests. It involves calculating the time taken to cover a certain distance or the distance covered in a given time. This concept is often tested in entrance exams like GATE. Here, we will discuss the key points related to time and distance in general aptitude.

Key Points:

1. Speed: Speed is defined as the distance covered per unit time. It is denoted by the symbol 'v' and its unit is usually km/h or m/s. The formula for speed is given by:
Speed = Distance / Time

2. Distance: Distance is the total length of the path covered by an object. It is denoted by the symbol 'd' and its unit is usually km or m.

3. Time: Time is the duration taken to cover a certain distance. It is denoted by the symbol 't' and its unit is usually hours or seconds.

4. Relation between Speed, Distance, and Time: The three quantities, speed, distance, and time, are related by the formula:
Distance = Speed x Time

5. Relative Speed: When two objects are moving in the same direction, their relative speed is the difference between their individual speeds. When two objects are moving in opposite directions, their relative speed is the sum of their individual speeds.

6. Conversion of Units: It is important to convert units to a common system before solving time and distance problems. For example, if one object's speed is given in km/h and the other object's speed is given in m/s, we need to convert one of them to the other unit before calculating relative speed.

7. Problems: Time and distance problems can involve various scenarios such as trains crossing each other, a person walking or running, or a vehicle covering a distance. These problems may require the use of formulas, equations, or logical reasoning to find the unknown variable.

By understanding and practicing these key concepts, one can improve their problem-solving skills in time and distance related aptitude questions.

Conclusion:

Time and distance problems are an essential part of general aptitude tests and are often tested in exams like GATE. By understanding the key concepts and practicing various problems, one can excel in solving time and distance related aptitude questions. It is important to remember the formulas, convert units if necessary, and apply logical reasoning to find the unknown variables in these problems.