Multiple choice

An amount of rs.X at compound interest at 20% per anum for 3 years Y.what is Y:X ?

  1. 3:1

  2. 36:25

  3. 216 :125

  4. 125: 216

  5. can't be established.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

At 20% compound interest for 3 years, amount Y = X × (1.2)^3 = X × 1.728. So Y:X = 1.728:1 = 1728:1000 = 216:125. The compound interest formula A = P(1 + r/100)^n gives us this ratio.

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