Home » Aptitude » Compound Interest » Question
  1. What sum will give ₹ 244 as the difference between simple interest and compound interest
    at 10% in 1
    1
    years compounded half yearly ?
    2
    1. ₹ 40,000
    2. ₹ 36,000
    3. ₹ 32,000
    4. ₹ 28,000
Correct Option: C

If Interest is compounded half yearly ,

Time =
3
years
2

⇒ Time =
3
× 2 = 3 half years
2

Rate =
10
= 5% per half year , Difference = C.I. - S.I. = ₹ 244
2

[∵  when r → r/2, then t → 2t]
Using the given formula ,
Difference = P
r3
+
3r2
100000010000

⇒ 244 = P
125
+
75
100000010000

⇒ 244 = P
125 + 7500
1000000

⇒ 244 = P
7625
1000000

⇒  P =
244 × 1000000
= ₹ 32000
7625



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