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- Important Formulas
- A sum of money doubles itself in 4 years at compound interest. When will it amounts to 8 times itself at the same rate of interest ?
- 12 years
- 24 years
- 18 years
- 16 years
Answer is a
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2. If the amount on a certain principle in 3years at 1
- 15440
- 14550
- 14330
- 13440
Answer is d
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3. A certain grows at an annual interest rate of 1
- 1/64 = (1.04)12y
- 8=(1.01)6y
- 64=(1.04)12y
- 64=(1.04)12y
Answer is c
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4. Compound interest on a sum of money for 2years at 4 percent per annum is ₹2,448. After 2 Years the simple interest of the same sum of money at the same rate of interest will be
- ₹ 2400
- ₹ 2250
- ₹ 2500
- ₹ 2360
Answer is a
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5. If the compound interest at a rate of
- ₹450
- ₹432
- ₹435
- ₹430
Answer is b
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