Shortcuts for solving problems in the Quantitative Aptitude section of the SSC CHSL Exam

The Quantitative Aptitude section of the SSC CHSL Exam requires candidates to solve numerical problems efficiently and accurately. While solving these problems, candidates can use various shortcuts and tricks to save time and improve their chances of scoring well. Here are some specific shortcuts that can be applied to solve problems in the Quantitative Aptitude section of the SSC CHSL Exam:

1. Multiplication Tricks:
- Multiply by 11: To multiply a two-digit number by 11, simply add the two digits together and place the sum between them. For example, 24 * 11 = 264.
- Multiply by 5: To multiply a number by 5, divide it by 2 and then multiply by 10. For example, 37 * 5 = (37/2) * 10 = 185.
- Multiply by 25: To multiply a number by 25, divide it by 4 and then multiply by 100. For example, 48 * 25 = (48/4) * 100 = 1200.

2. Division Tricks:
- Divisibility by 2: If the last digit of a number is 0, 2, 4, 6, or 8, it is divisible by 2.
- Divisibility by 3: If the sum of the digits of a number is divisible by 3, then the number itself is divisible by 3.
- Divisibility by 9: If the sum of the digits of a number is divisible by 9, then the number itself is divisible by 9.

3. Percentage Tricks:
- Percentages as Fractions: To convert a percentage into a fraction, divide it by 100. For example, 25% = 25/100 = 1/4.
- Finding Percent of a Number: To find a percentage of a number, multiply the number by the percentage and divide by 100. For example, 30% of 150 = (30/100) * 150 = 45.

4. Squares and Cubes:
- Squares: Memorize the squares of numbers from 1 to 30 to quickly solve problems involving squares.
- Cubes: Memorize the cubes of numbers from 1 to 15 to quickly solve problems involving cubes.

5. Ratio and Proportion:
- Direct Proportion: If two quantities are directly proportional, their ratios will remain constant. For example, if the ratio of apples to oranges is 3:2 and there are 6 apples, then there will be 4 oranges.
- Inverse Proportion: If two quantities are inversely proportional, their product will remain constant. For example, if the time taken to complete a task is inversely proportional to the number of workers, then increasing the number of workers will decrease the time taken.

By using these shortcuts and tricks, candidates can solve problems in the Quantitative Aptitude section of the SSC CHSL Exam quickly and accurately. Regular practice and familiarity with these shortcuts will help candidates improve their problem-solving skills and increase their chances of success in the exam.