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No. of Questions 
10 
Time 
10 min 
Medium 
english 
Marks 
10 
Positive Marks 
+1 
Negative Marks 
0 
INSTRUCTION : All question carry 1 mark and there is only single option correct for every questionMark review to see the question later 
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Question 1 of 10
1. Question
1 pointsA sum of money at simple interest amounts to Rs. 815 in 3 years and to Rs. 854 in 4 years. The sum is:
Correct
Answer: Option C
Explanation:
S.I. for 1 year = Rs. (854 – 815) = Rs. 39.
S.I. for 3 years = Rs.(39 x 3) = Rs. 117.
Principal = Rs. (815 – 117) = Rs. 698.
Incorrect
Answer: Option C
Explanation:
S.I. for 1 year = Rs. (854 – 815) = Rs. 39.
S.I. for 3 years = Rs.(39 x 3) = Rs. 117.
Principal = Rs. (815 – 117) = Rs. 698.

Question 2 of 10
2. Question
1 pointsMr. Thomas invested an amount of Rs. 13,900 divided in two different schemes A and B at the simple interest rate of 14% p.a. and 11% p.a. respectively. If the total amount of simple interest earned in 2 years be Rs. 3508, what was the amount invested in Scheme B?
Correct
Answer: Option A
Explanation:
Let the sum invested in Scheme A be Rs. x and that in Scheme B be Rs. (13900 – x).
Then, x x 14 x 2 + (13900 – x) x 11 x 2 = 3508
100 100
28x – 22x = 350800 – (13900 x 22)6x = 45000
x = 7500.
So, sum invested in Scheme B = Rs. (13900 – 7500) = Rs. 6400.
Incorrect
Answer: Option A
Explanation:
Let the sum invested in Scheme A be Rs. x and that in Scheme B be Rs. (13900 – x).
Then, x x 14 x 2 + (13900 – x) x 11 x 2 = 3508
100 100
28x – 22x = 350800 – (13900 x 22)6x = 45000
x = 7500.
So, sum invested in Scheme B = Rs. (13900 – 7500) = Rs. 6400.

Question 3 of 10
3. Question
1 pointsA sum fetched a total simple interest of Rs. 4016.25 at the rate of 9 p.c.p.a. in 5 years. What is the sum?
Correct
Answer: Option D
Explanation:
Principal
= Rs. 100 x 4016.25
9 x 5
= Rs. 401625
45
= Rs. 8925.Incorrect
Answer: Option D
Explanation:
Principal
= Rs. 100 x 4016.25
9 x 5
= Rs. 401625
45
= Rs. 8925. 
Question 4 of 10
4. Question
1 pointsHow much time will it take for an amount of Rs. 450 to yield Rs. 81 as interest at 4.5% per annum of simple interest?
Correct
nswer: Option B
Explanation:
Time = 100 x 81 years = 4 years. 450 x 4.5 Incorrect
nswer: Option B
Explanation:
Time = 100 x 81 years = 4 years. 450 x 4.5 
Question 5 of 10
5. Question
1 pointsReena took a loan of Rs. 1200 with simple interest for as many years as the rate of interest. If she paid Rs. 432 as interest at the end of the loan period, what was the rate of interest?
Correct
Answer: Option B
Explanation:
Let rate = R% and time = R years.
Then, 1200 x R x R = 432 100 12R^{2} = 432
R^{2} = 36
R = 6.
Incorrect
Answer: Option B
Explanation:
Let rate = R% and time = R years.
Then, 1200 x R x R = 432 100 12R^{2} = 432
R^{2} = 36
R = 6.

Question 6 of 10
6. Question
1 points6.
A sum of Rs. 12,500 amounts to Rs. 15,500 in 4 years at the rate of simple interest. What is the rate of interest?Correct
Answer: Option D
Explanation:
S.I. = Rs. (15500 – 12500) = Rs. 3000.
Rate = 100 x 3000 % = 6% 12500 x 4 Incorrect

Question 7 of 10
7. Question
1 points7.
An automobile financier claims to be lending money at simple interest, but he includes the interest every six months for calculating the principal. If he is charging an interest of 10%, the effective rate of interest becomes:Correct
Answer: Option B
Explanation:
Let the sum be Rs. 100. Then,
S.I. for first 6 months = Rs. 100 x 10 x 1 = Rs. 5 100 x 2 S.I. for last 6 months = Rs. 105 x 10 x 1 = Rs. 5.25 100 x 2 So, amount at the end of 1 year = Rs. (100 + 5 + 5.25) = Rs. 110.25
Effective rate = (110.25 – 100) = 10.25%
Incorrect
Answer: Option B
Explanation:
Let the sum be Rs. 100. Then,
S.I. for first 6 months = Rs. 100 x 10 x 1 = Rs. 5 100 x 2 S.I. for last 6 months = Rs. 105 x 10 x 1 = Rs. 5.25 100 x 2 So, amount at the end of 1 year = Rs. (100 + 5 + 5.25) = Rs. 110.25
Effective rate = (110.25 – 100) = 10.25%

Question 8 of 10
8. Question
1 points8.
A lent Rs. 5000 to B for 2 years and Rs. 3000 to C for 4 years on simple interest at the same rate of interest and received Rs. 2200 in all from both of them as interest. The rate of interest per annum is:Correct
Answer: Option D
Explanation:
Let the rate be R% p.a.
Then, 5000 x R x 2 + 3000 x R x 4 = 2200. 100 100 100R + 120R = 2200
R = 2200 = 10. 220 Rate = 10%.
Incorrect
Answer: Option D
Explanation:
Let the rate be R% p.a.
Then, 5000 x R x 2 + 3000 x R x 4 = 2200. 100 100 100R + 120R = 2200
R = 2200 = 10. 220 Rate = 10%.

Question 9 of 10
9. Question
1 points9.
A sum of Rs. 725 is lent in the beginning of a year at a certain rate of interest. After 8 months, a sum of Rs. 362.50 more is lent but at the rate twice the former. At the end of the year, Rs. 33.50 is earned as interest from both the loans. What was the original rate of interest?Correct
Answer: Option E
Explanation:
Let the original rate be R%. Then, new rate = (2R)%.
Note:
Here, original rate is for 1 year(s); the new rate is for only 4 months i.e. year(s).725 x R x 1 + 362.50 x 2R x 1 = 33.50 100 100 x 3 (2175 + 725) R = 33.50 x 100 x 3
(2175 + 725) R = 10050
(2900)R = 10050
R = 10050 = 3.46 2900 Original rate = 3.46%
Incorrect
Answer: Option E
Explanation:
Let the original rate be R%. Then, new rate = (2R)%.
Note:
Here, original rate is for 1 year(s); the new rate is for only 4 months i.e. year(s).725 x R x 1 + 362.50 x 2R x 1 = 33.50 100 100 x 3 (2175 + 725) R = 33.50 x 100 x 3
(2175 + 725) R = 10050
(2900)R = 10050
R = 10050 = 3.46 2900 Original rate = 3.46%

Question 10 of 10
10. Question
1 points10.
A man took loan from a bank at the rate of 12% p.a. simple interest. After 3 years he had to pay Rs. 5400 interest only for the period. The principal amount borrowed by him was:Correct
Answer: Option C
Explanation:
Principal = Rs. 100 x 5400/12×3 = Rs. 15000
Incorrect
Answer: Option C
Explanation:
Principal = Rs. 100 x 5400/12×3 = Rs. 15000