Question

the difference between the compound interest and simple interest on a certain sum for 2 years at 5%per annum is rs. 40. find the sum​

Answer 1

Formula for the difference between Compound Interest and Simple Interest.

Formula for the difference between Compound Interest and Simple Interest. In this formula D is consider as different between C. I. and S. I.

Formula for the difference between Compound Interest and Simple Interest. In this formula D is consider as different between C. I. and S. I. P is principal

Formula for the difference between Compound Interest and Simple Interest. In this formula D is consider as different between C. I. and S. I. P is principalr is rate.

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Answer 2

Let the Principal be x

Time = 2yrs

Rate = 5%

So, SI = x.2.5/100

= x/10

CI = x[ (1+ 5/100)² - 1]

= x [(105/100)² - 1²]

= x (105/100+1)(105/100 - 1]

= 41x /400

BTP

41x/400 - X/10 = 40

=> x/400= 40

=> x = 16000

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