Aptitude - Simple Interest - Discussion

Discussion Forum : Simple Interest - General Questions (Q.No. 14)
14.
A person borrows Rs. 5000 for 2 years at 4% p.a. simple interest. He immediately lends it to another person at 6% p.a for 2 years. Find his gain in the transaction per year.
Rs. 112.50
Rs. 125
Rs. 225
Rs. 167.50
Answer: Option
Explanation:

Gain in 2 years
= Rs. 5000 x 25 x 2 - 5000 x 4 x 2
4 100 100
= Rs. (625 - 400)
= Rs. 225.

Gain in 1 year = Rs. 225 = Rs. 112.50
2

Video Explanation: https://youtu.be/zBjcwqIcmL4

Discussion:
49 comments Page 2 of 5.

Niranjan patil said:   6 years ago
(5000*25)/400 - (5000*4)/100 = 112.50.

Tejanth said:   6 years ago
6 (1/4) can written as ((6*4)+1)/4. i.e 25/4.

Swar said:   7 years ago
2 denotes the number of years.

i.e T, and R % = 6 1/4 = 25/4 % ie 25/(4x100).

Animesh said:   7 years ago
How it is 2/100? Can anyone explain me?

Hussain Ezzy said:   7 years ago
@All.

One can avoid the calculations by simply taking the amount of increase in the rate of interest.

i.e
Gain rate --> 25/4 = 6.25%.
Original Rate --> 4%.
increase = 2.25%.
Therefore, Gain = (5000x2.25)/100 = 112.5 Rs.

Raj said:   7 years ago
How come 2 as the denominator in the last step?

Ayushi said:   7 years ago
In this question, it is mention that person lends the amount to another person at (6 1/4) 25/4 pa not 25/4pc. then how come we are considering this 25/4 as a percentage?

The answer should be RS. 310.5 according to question. Can anyone clear my this doubt?

Shahee said:   8 years ago
If the time is different. Then how to calculate the gain?

HARDIK KHIRNAR said:   8 years ago
How it is possible?

Because here the rate of interest is different for each 2 years. So he gains transaction each year is also different. So the person who is intelligent please clear my concept.

Kareena said:   8 years ago
Why are we dividing 225/2?


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