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Q.

Mr. Aravind has a total of Rs.15000. He spends of his money on education. How many rupees does he spend on his education?

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a

Rs.5000

b

Rs.4500

c

Rs.1000

d

Rs.5500

answer is B.

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Detailed Solution

Concept- Here, Mr. Aravind is informed that he has a total of 15,000 rupees. If he spends 30% of his money on education, he needs to find the value of the money he spends on education. Before continuing with this question, let's understand the concept of percentages. In mathematics, a percentage is a number or ratio that can be expressed as a fraction of 100, which means one-hundredth. The word percentage means around 100. It is represented by the symbol "

". Percentages are dimensionless or unitless numbers. For example,

of the number means

of the total. Let's use this method to calculate a percentage of numbers. Suppose you have the number `N` and you need to calculate its

x %

: Number of

.... (I) Let's take a look at our question. Here Mr. Aravind has a total of 15,000 rupees. He spends

of his money on education. So, we Money spent on education by Aravind

of total

of

R s .15000 %

of the number

.
Using this, we get: Money spent on education by Mr. Aravind

.
A simplification of the RHS in the above equation is: Money spent on education by Mr. Aravind

= R s .4500

Therefore, the total amount of 15,000 rupees that Mr. Aravind spent on his education is 4,500 rupees.
Hence, option 2 is correct.

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