Multiple choice general knowledge math & puzzles

a,b,c are sum of money such that b is S.I on a, c is S.I on o for same rate and same time,then:

  1. a^2=bc

  2. b^2=ac

  3. c^=ab

  4. abc=1
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B Correct answer
Explanation

Assuming 'S.I on o' is a typo for 'S.I on b': if b = ar (SI on a) and c = br (SI on b) at same rate r and time, then c = ar^2. This gives b^2 = (ar)^2 = a(ar^2) = ac.

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