Time and Work - 3 Video Lecture | Crash Course for SSC CGL (English)

Ans. To solve time and work problems in SSC CGL, follow these steps: 1. Understand the given problem and identify the work to be done. 2. Determine the individual work rate of each person involved. 3. Use the formula: Work = Rate × Time to calculate the total work done. 4. Set up equations based on the given conditions. 5. Solve the equations to find the required time or number of people to complete the work. 6. Verify the answer by substituting the values back into the equations.

Ans. The important formulas for time and work problems in SSC CGL are: 1. Work = Rate × Time: This formula calculates the total work done by multiplying the rate at which work is done by the time taken. 2. Efficiency = 1/Time: This formula calculates the efficiency of a person by taking the reciprocal of the time taken. 3. Work Ratio = Work done by A : Work done by B: This formula compares the work done by different individuals or groups. 4. Work Efficiency Ratio = Efficiency of A : Efficiency of B: This formula compares the efficiency of different individuals or groups. 5. Days required to complete a work = Total work / Work done in a day: This formula calculates the number of days required to complete a work.

Ans. To improve your speed in solving time and work problems for SSC CGL, try the following tips: 1. Practice regularly: Solve a variety of time and work problems regularly to improve your problem-solving skills and speed. 2. Understand the problem: Read the problem carefully and make sure you understand the given conditions and what needs to be solved. 3. Memorize important formulas: Memorize the important formulas and concepts related to time and work problems to save time during calculations. 4. Use shortcuts: Look for shortcuts or alternative methods to solve the problems more quickly. 5. Time yourself: Set a timer while solving practice questions to track your speed and challenge yourself to improve.

Ans. Yes, there are some common mistakes to avoid while solving time and work problems in SSC CGL. These include: 1. Misinterpreting the given conditions: Ensure that you understand the given conditions correctly before setting up equations or calculations. 2. Incorrectly applying the formulas: Double-check the formulas and ensure that you are using the correct formula for the given problem. 3. Calculation errors: Be careful with calculations, especially when dealing with fractions or decimals. Double-check your calculations to avoid mistakes. 4. Not verifying the answer: Always verify the answer by substituting the values back into the equations or conditions to ensure it satisfies the given problem. 5. Lack of practice: Lack of practice can lead to slower speed and more mistakes. Regularly practice time and work problems to improve your skills.

Ans. Sure! Here's an example of a time and work problem: Question: A machine can produce 1000 units of product in 8 hours. How many machines are required to produce 5000 units in 10 hours? Solution: Let's assume the number of machines required is 'x'. The work done by one machine in 1 hour = 1000 units / 8 hours = 125 units/hour. So, the total work done by 'x' machines in 1 hour = 125 units/hour × 'x' machines = 125x units/hour. Now, we need to produce 5000 units in 10 hours. So, the total work done by 'x' machines in 10 hours = 125x units/hour × 10 hours = 1250x units. According to the given condition, 1250x = 5000. Solving this equation, we get x = 4. Therefore, 4 machines are required to produce 5000 units in 10 hours.