1 Answers
Option 4 : I
Given:
Principal = P, time =1 year, rate of interest = 24%
Formula used:
when interest is compounded annually
A = P(1 + r%)t
where A, P, r and t are amount, principal, rate and time respectively.
When interest is simple interest.
Simple interest = (P × r × t)/100
Calculation:
When compound is quartely, then rate is divided by 4 and time is multiply by 4
A = 100(1 + 6%)4
⇒ A = 100 ( 1 + 0.06)4
⇒ A = 100 (1.06)4
⇒ A = 100 × 1.262
⇒ A = 126
when interest is half yearly, then rate is divided by 2 and time is multiply by 2.
A = 100 (1 + 12%)2
⇒ A = 100 ( 1 + 0.12)2
⇒ A = 100 × 1.12
⇒ A = 100 × 1.2544
⇒ A = 125.44
when interest is annually.
A = 100 (1 + 24%)1
⇒ A = 100 (1 + 0.24)
⇒ A = 100 × 1.24
⇒ A = 124
simple interest = (100 × 24 × 1)/100
⇒ 24
Amount = 100 + 24
⇒ Rs. 124
In all the above cases, amount is maximum when compound is quartely.
∴ scheme I is more beneficial for a customer after a period of 1 year.