66
Q:

Simple interest on a certain sum is 16/25 of the sum. Find the rate percent and time, If both are numerically equal.

A) Rate = 7% and Time = 7 years. B) Rate = 8% and Time = 8 years.
C) Rate = 6% and Time = 6 years. D) Rate = 5% and Time = 5 years.

Answer:   B) Rate = 8% and Time = 8 years.



Explanation:

Let sum = X. Then S.I = 16x/25

 

Let rate = R% and Time = R years.

 

Therefore,  (x * R * R)/100 = 16x/25   =>  R = 40/5 = 8

 

Therefore, Rate = 8% and Time = 8 years.

Q:

A sum becomes Rs 2286 in 3 years and Rs 2448 in 4 years at simple interest. What is the rate (in percentage) of interest per annum?

A) 10 B) 9
C) 8 D) 11
 
Answer & Explanation Answer: B) 9

Explanation:
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0 16
Q:

Ganesh invested an amount of Rs x in a fixed deposit scheme offering 5% per annum for 1st year and 15% per annum for 2nd year and received an amount of Rs 9660 after two years. What is the value of x (in Rs)?

A) 9000 B) 8000
C) 8500 D) 8200
 
Answer & Explanation Answer: B) 8000

Explanation:
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0 7
Q:

Deepinder lent Rs 8200 to Jairaj for 16 years and Rs 4900 to Karna for 15 years on simple interest at the same rate of interest and received Rs 19446.5 in all from both of them as interest. The rate of interest per annum is:

A) 10 percent B) 10.5 percent
C) 9.5 percent D) 11 percent
 
Answer & Explanation Answer: C) 9.5 percent

Explanation:
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2 42
Q:

The effective annual rate of interest corresponding to a nominal rate of 15% per annum payable half-yearly is

A) 15.56 percent B) 30 percent
C) 31.13 percent D) 15 percent
 
Answer & Explanation Answer: A) 15.56 percent

Explanation:
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2 30
Q:

Simple interest on a certain sum of money for 3 years at 18% per annum is half the compound interest on Rs. 9000 for 2 years at 10% per annum. The sum placed on simple interest is:

A) Rs 3500 B) Rs 875
C) Rs 1750 D) Rs 1400
 
Answer & Explanation Answer: C) Rs 1750

Explanation:
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1 32
Q:

On a certain principal if the Simple interest for two years is Rs 3000 and Compound interest for the two years is Rs 3225, what is the rate of Interest?

A) 7.5 percent B) 30 percent
C) 15 percent D) 22.5 percent
 
Answer & Explanation Answer: C) 15 percent

Explanation:
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0 83
Q:

The difference between simple and compound interests compounded annually on a certain sum of money for 2 years at 16% per annum is Rs 320. What is the value of given sum (in Rs)?

A) 25000 B) 50000
C) 37500 D) 12500
 
Answer & Explanation Answer: D) 12500

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0 66
Q:

A sum of Rs. 3000 yields an interest of Rs. 1080 at 12% per annum simple interest in how many years ?

A) 4 Years B) 3 Years
C) 5 Years D) 2.5 Years
 
Answer & Explanation Answer: B) 3 Years

Explanation:
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1 41