165
Q:

A certain sum of money amounts to Rs 1008 in 2 years and to Rs 1164 in 3 ½  years. Find the sum and the rate of interest.

A) 800, 14% B) 800, 13%
C) 800, 12% D) 800, 19%

Answer:   B) 800, 13%



Explanation:

S.I. for 1 ½ years = Rs (1164 - 1008) = Rs 156 . 

S.I. for 2 years = Rs (156 x 23 x 2)= Rs 208. 

Therefore, Principal = Rs (1008 - 208) = Rs 800. 

Now, P = 800, T= 2 and S.I. = 208.

Therefore, Rate = (100 x S.I.) / (P x T) = [ (100 x 208)/(800 x 2)]% = 13%

Q:

The simple interest on a certain sum at the end of three years at 5%p.a. is ₹1,200. The compound interest on the same sum for the same period at the same rate is (interest compounded yearly):

 

A) ₹1,800 B) ₹1,261
C) ₹820 D) ₹1,260
 
Answer & Explanation Answer: B) ₹1,261

Explanation:
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1 1010
Q:

A sum of money invested for 4 years and 9 months at a rate of 8% simple interest per annum became Rs. 1,035 at the end 0 of the period. What was the sum that was initially invested?

 

A) Rs. 700 B) Rs. 675
C) Rs. 725 D) Rs. 750
 
Answer & Explanation Answer: D) Rs. 750

Explanation:
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4 319
Q:

At what percent of simple interest will a sum 0f money double itself in 15 years?

A) 6 1/3% B) 6 2/3%
C) 6 1/2% D) 6%
 
Answer & Explanation Answer: B) 6 2/3%

Explanation:
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3 366
Q:

What is the total earning after 2 years from Rs.18,750 on variable compound interest if the rate of interest for the first 4 year is 4% and for the second, it is 8%?

A) ₹ 1,740 B) ₹ 1,760
C) ₹ 1,670 D) ₹ 2,310
 
Answer & Explanation Answer: D) ₹ 2,310

Explanation:
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1 1893
Q:

The simple interest on a sum of Rs.50,000 at the end of two years is Rs.4,000. What would be the compound interest on the same sum at the same rate for the same period ?

 

A) 4,040   B) 4,080  
C) 4,008   D) 8,000  
 
Answer & Explanation Answer: B) 4,080  

Explanation:
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1 1899
Q:

Rs. 775 invested for 6 years gives an interest of Rs. 372. The rate of simple interest per annum is:

 

A) 8% B) 7%
C) 9% D) 7.5 %
 
Answer & Explanation Answer: A) 8%

Explanation:
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2 384
Q:

In how many wars will an amount be doubled at 28.75% annual rate of interest?

 

A) 3.00 B) 3.90
C) 3.47 D) 6.00
 
Answer & Explanation Answer: C) 3.47

Explanation:
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0 1231
Q:

If in 13 years a fixed sum doubles at simple interest, what will be the interest rate per year? (Correct to two decimal places)

 

A) 8.69%   B) 7.69%  
C) 7.29%   D) 7.92%  
 
Answer & Explanation Answer: B) 7.69%  

Explanation:
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0 232