#4 Percent || The most difficult CAT problems can be solved in 1 line by using this method

Описание: Why percent is used in almost all the competitive exams?
What is the use of it in the real life scenario?
Why learning this topic can be crucial for your success?

All such question will be answered in the next 11 video lessons on percentage that have been brought to you by the team of Aptitude360.

Watch Percentage Video lesson III here -    • #3 Percent  || AB formula || 2 successive ...  
Watch Percentage Video lesson II here -    • #2 Percent ||  5 sec shortcut to solve 1 p...  
Watch Percentage Video lesson I here -    • #1 Percent | Learn from Basics | MUST for ...  

In this video, we are discussing –
1. The concept of multiplying factors.
2. How this concept is more efficient than that of AB formula we discussed in video lesson 3?

We are also solving the following problems, here-
1. A spends 10% of his salary on food, 20% of the rest on loans and 25% of the rest on education. Now he/she is left with Rs 5400. Find the salary?
a. 12,000
b. 10,000
c. 15,000
d. 20,000

2. A milkman replaces 20% milk from a container full of pure milk and replaces this with water? He does this two more times. Find the concentration of water in the final mixture of milk and water?
a. 48.80%
b. 51.20%
c. 40%
d. 60%

3. In an examination in which the full marks were 800 - A gets 20% more than B, B gets 20% more than C, and C gets 15% less than D. If A got 576 marks, what percentage of full marks did D get (approx)
a. 45.70%
b. 51.20%
c. 58.80%
d. 61.70%

4.A started a business with an initial investment of Rs 500000. In the 1st year, he incurred a loss of 4%. In 2nd year, he earned a profit of 5% which in the 3rd year rose to 10%. Calculate his net profit for the entire period of three years
a. Rs 48800
b. Rs 54400
c. Rs 55000
d. None of these

5. The population of village in year 2021 is 10,000. It has been increasing by 25% every year. What would have been the population in year 2017?
a. 4000
b. 5000
c. 4096
d. None of these

After watching all the 11 videos on percentage, you will be able to -
1) Know the basics of Percentage.
2) Difference between percentage and ratio.
3) The concept of multiplying factors
4) AB formula for successive percent changes
5) Solve complex problems of Geometry where dimensions are increasing / decreasing
6) Solve Previous year papers

The percent gets utilized in following topics -
a. Ratio and Proportion'
b. Averages
c. Profit and Loss
d. Time and Work
e. Time, Speed and Distance
f. Area and Volume problem
g. Mixture and Alligation

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