X took a loan of Rs.1200 with simple interest for as many years as the rate of interest. If he paid Rs.432 as interest at the end of the loan period, what was the rate of interest? (a) 3.6% (b) 6 % (c) 18% (d) 7% correct answer is option'B' can anyone explain this.?

Question

Answer

B 6%

Answer

Correct answer is b Becoz Intrest for many years:- 1200*6%= 72 1st year = 72 2year = 144 3 year = 216 4 year = 288 5 year = 360 6 year =, 432 Question is asking for many years Intrest.....

Answer

Given:
- Principal amount (P) = Rs. 1200
- Simple interest (I) = Rs. 432

To Find:
- Rate of interest (R)

Formula:
The formula to calculate simple interest is:
I = (P * R * T) / 100

Where:
- I is the interest
- P is the principal amount
- R is the rate of interest
- T is the time period

Approach:
Since the loan period is equal to the rate of interest, let's assume the time period as 'x' years.

Now, we can rewrite the formula for simple interest as:
I = (P * R * T) / 100
432 = (1200 * R * x) / 100

Simplifying the equation:
432 = 12 * R * x

Dividing both sides by 12:
36 = R * x

Since the principal amount and the time period are the same (Rs. 1200 and 'x' years), we can substitute them in the equation:
36 = R * 1200

Dividing both sides by 1200:
36 / 1200 = R

Simplifying the fraction:
0.03 = R

Calculation:
The rate of interest (R) is equal to 0.03, which is equivalent to 3%.

So, the correct answer is option (a) 3.6%.

Answer

B

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