*What is the compound interest on Rs. 200 for 1 year at 10% rate compounded half-yearly*
1️⃣ Rs.200
2️⃣ Rs.220.50
3️⃣ Rs. 320.50
4️⃣ Rs. 100.50
Answers
Principal = ₹200
Time = 1 year compounded half yearly
Rate = 10%
Now,
For 1st ½ year,
P = ₹200
R = 10%
T = ½ year
For 2nd ½ year,
P = ₹210
R = 10%
T = ½ year
Now,
Required amount = ₹ 211.5
______________________
@MissSolitary ✌️
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Given :-
- Principal = Rs.200
- Time = 1 year.
- Rate = 10% compounded half-yearly .
To Find :-
- Compound interest = ?
Solution :-
we know that, when rate is compounded half - yearly,
- Time = 2 times = 1 * 2 = 2 years.
- Rate = Half = 10 / 2 = 5% per annum .
- Amount = P[1 + (R/100)]^(time)
- CI = Amount - Principal .
putting values we get,
→ A = 200[1 + (5/100)]²
→ A = 200 * [1 + (1/20)]²
→ A = 200 * (21/20)²
→ A = (200 * 441)/400
→ A = (441/2)
→ A = Rs.220.5 .
therefore,
→ CI = A - P
→ CI = 220.5 - 200
→ CI = Rs.20.5 (Ans.)
Hence, Amount after 1 year is Rs.220.5 and compound interest recieved is Rs.20.5 .
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