Aptitude Topic: Simple Interest and Compound Interest Study Material
Problems on Simple Interest and Compound Interest Foundation
MODERATE
HOTS-HIGH ORDER THINKING SKILLS
SOLUTIONS FOUNDATION 1. 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. 2. Answer: Option A Explanation: Let the sum invested in Scheme A be Rs. x and that in Scheme B be Rs. (13900 – x).
28x – 22x = 350800 – (13900 x 22) 6x = 45000 x = 7500. So, sum invested in Scheme B = Rs. (13900 – 7500) = Rs. 6400. 3. Answer: Option D Explanation:
4. Answer: Option B Explanation:
5. Answer: Option B Explanation: Let rate = R% and time = R years.
12R2 = 432 R2 = 36 R = 6. MODERATE 1. Answer: Option D Explanation: S.I. = Rs. (15500 – 12500) = Rs. 3000.
2. Answer: Option B Explanation: Let the sum be Rs. 100. Then,
So, amount at the end of 1 year = Rs. (100 + 5 + 5.25) = Rs. 110.25 3. Answer: Option B Explanation:
4. Answer: Option A Explanation: Let the sum be Rs. x. Then,
x = 625. 5. Answer: Option C Explanation: Let P = Rs. 100. Then, S.I. Rs. 60 and T = 6 years.
Now, P = Rs. 12000. T = 3 years and R = 10% p.a.
SOLUTIONS FOUNDATION 1. 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. 2. Answer: Option A Explanation: Let the sum invested in Scheme A be Rs. x and that in Scheme B be Rs. (13900 – x).
28x – 22x = 350800 – (13900 x 22) 6x = 45000 x = 7500. So, sum invested in Scheme B = Rs. (13900 – 7500) = Rs. 6400. 3. Answer: Option D Explanation:
4. Answer: Option B Explanation:
5. Answer: Option B Explanation: Let rate = R% and time = R years.
12R2 = 432 R2 = 36 R = 6. MODERATE 1. Answer: Option D Explanation: S.I. = Rs. (15500 – 12500) = Rs. 3000.
2. Answer: Option B Explanation: Let the sum be Rs. 100. Then,
So, amount at the end of 1 year = Rs. (100 + 5 + 5.25) = Rs. 110.25 3. Answer: Option B Explanation:
4. Answer: Option A Explanation: Let the sum be Rs. x. Then,
x = 625. 5. Answer: Option C Explanation: Let P = Rs. 100. Then, S.I. Rs. 60 and T = 6 years.
Now, P = Rs. 12000. T = 3 years and R = 10% p.a.
HOTS-HIGH ORDER THINKING SKILLS 1. Answer: Option A Explanation:
2. Answer: Option A Explanation: Amount = Rs. (30000 + 4347) = Rs. 34347. Let the time be n years.
3. Answer: Option C Explanation:
4. Answer: Option A Explanation: Let the rate be R% p.a.
R = 6% 5. Answer: Option B Explanation:
So, n = 4 years. |