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  1. The time in which ₹ 80,000 amounts to ₹ 92,610 at 10% p.a. compound interest, interest being compounded semi annually is :
    1. 1
      1
      years
      2
    2. 2 years
    3. 2
      1
      years
      2
    4. 3 years
Correct Option: A

Given Here , Amount ( A ) = ₹ 92,610 , P = ₹ 80,000 , Rate ( R ) = 10% p.a. , Time = t half year and R = 5% per half year

∴  A = P 1 +
R
T
100

⇒ 92,610 = 80,000 1 +
5
T
100

⇒ 
92610
= 1 +
5
T
80000100

⇒ 
9261
=
21
T
800020

⇒ 
21
3 =
21
T
2020

⇒  T = 3 half years or 1
1
years
2



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