Most Important Questions of Simple Interest (Download PDF)
1. Ms Ayesha borrowed Rs. 1000 at 5% per annum simple interest. What amount (in rupees) will she pay to clear her debt after 4 years?
- 200
- 1200
- 220
- 1300
2. The amount of simple interest on a deposit of ₹8,500 for 3 years is ₹2,040. Find the rate of interest per annum.
- 8%
- 8.5%
- 9%
- 7.5%
3. Find the simple interest of Rs. 2000 for 8.25% yearly rate from 9 March, 2010 to 21 May, 2010.
(A) Rs. 43 (B) Rs. 37
(C) Rs. 33 (D) Rs. 40
- (A)
- (B)
- (D)
- (C)
4. Ram lends 6000 to Shiv for 3 years and 8000 to Krishna for 5 years at same annual rate. He received 5220 in all from both as interest. The rate of interest per annum is :
(A) 6% (B) 7%
(C) 8% (D) 9%
- (C)
- (B)
- (A)
- (D)
5. The simple interest on a certain sum of money for 2 years at 10% per annum is Rs.2000. If interest compounded yearly on the sum, then what will be the difference of both types of interest:
(A) Rs.200 (B) Rs.220
(C) Rs.100 (D) Rs.120
- (D)
- (B)
- (C)
- (A)
6. An amount was invested at a simple rate of interest p.a. for 5 years. It would have fetched Rs. 300 more had it been invested at 2% higher rate. What was the amount invested?
- Rs. 3300
- Rs. 3000
- Rs. 2000
- Rs. 2300
7. Ms. Diksha borrowed Rs. 575 at 5% per annum simple interest. What amount (in rupees) will she pay to clear her debt after 4 years?
- 690
- 151
- 960
- 115
8. The maturity values of an amount in 5 and 6 years at 8% simple interest p.a. are Rs. 1120 and Rs. 1184 respectively. Find the amount.
- Rs. 560
- Rs. 800
- Rs. 160
- Rs. 600
9. A sum of money at simple interest amounts to ₹2100 in 2 yr and ₹2250 in 5 yr. The principal and the rate of interest
- ₹1800, 3%
- ₹1800, 5%
- ₹2000, 3%
- ₹2000, 21/2%
10. A sum was invested, on simple interest at a certain rate for 2 yr. Had it been put at 3% higher rate, it would have fetched ₹ 72 more. The sum is
- ₹ 1200
- ₹ 1500
- ₹ 1600
- ₹ 1800
Solutions
Solution 1: Ans. B.
Interest in 4 years = 5% × 4 = 20% of the Principal
Hence, Interest = 20% × 1000 = Rs 200
Amount = 1000 + 200 = Rs 1200
Hence, option B is the correct answer.
Solution 2: Ans. A.
Simple Interest = Rs. 2040
Principal = Rs. 8500
We know that,
Solution 3: Ans. D.
Solution 4: Ans. D.
Let rate be r%
Interest on first = r% of (6000×3) = 180r
Interest on second = r% of (8000×5) = 400r
Now, according to question:
5220 = 180r + 400r
r = 5220/580 = 9%
Solution 5: Ans. C.
At SI: total interest rate in two years = 20%
At CI: total Interest rate in two years = 10 + 10 + (10×10)/100 = 21%
Now 20% = Rs. 2000
⇒ 1% = Rs.100
Thus, Difference between CI and SI = 21% - 20% = 1% = Rs.100
Solution 6: Ans. B.
Difference in the simple interest in 5 years = 2×5 = 10%
Given, 10% of the Amount = Rs 300
Hence, the amount = 300×10 = Rs 3000
Solution 7:
Solution 8: Ans. B.
Given, 8% of the amount = 1184−1120 = Rs 64
Hence, the amount = (64/8) ×100 = Rs 800
Solution 9: Ans. D.
Solution 10: Ans. A.
Download Important Questions on Simple Interest - Download PDF Here
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