Sum becomes k times (or a fraction more) of itself in t years at SI: rate

1. A.
   $6\frac{3}{7}\%$
2. B.
   $8\frac{1}{7}\%$
3. C.
   $7\frac{1}{7}\%$
4. D.
   $7\frac{3}{7}\%$

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1. A.
   $25\%$ p.a.
2. B.
   $10\%$ p.a.
3. C.
   $15\%$ p.a.
4. D.
   $20\%$ p.a.

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1. A.
   $20\%$
2. B.
   $25\%$
3. C.
   $35\%$
4. D.
   $30\%$

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1. A.
   $11.5\%$
2. B.
   $11\%$
3. C.
   $12\%$
4. D.
   $12.5\%$

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1. A.
   $19\%$ p.a.
2. B.
   $18\%$ p.a.
3. C.
   $17\%$ p.a.
4. D.
   $20\%$ p.a.

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