What is the simple interest on ₹24,000 at 5% per annum for 5 years?
- A₹7,200
- B₹6,000
- C₹4,800
- D₹1,200
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Answer: (B) ₹6,000
SI = P × R × T / 100 = 24000 × 5 × 5 / 100 = ₹6,000.
CDS Simple & Compound Interest Questions with Answers & Explanations
19 Simple & Compound Interest questions from the Elementary Mathematics section of CDS, each with the correct answer and a worked explanation. Try each question first, then tap Show answer to check. When you're ready, take the timed chapter-wise test to see your all-India rank.
What is the compound interest on ₹500 for 2 years at 10% per annum, compounded annually?
- A₹105
- B₹155
- C₹115.50
- D₹100
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Answer: (A) ₹105
CI = P[(1 + R/100)² − 1] = ₹105.
What is the simple interest on ₹9,000 at 5% per annum for 6 years?
- A₹2,970
- B₹2,250
- C₹2,700
- D₹450
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Answer: (C) ₹2,700
SI = P × R × T / 100 = 9000 × 5 × 6 / 100 = ₹2,700.
What is the difference between compound interest and simple interest on ₹1,700 for 2 years at 20% per annum?
- A₹340
- B₹102
- C₹136
- D₹68
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Answer: (D) ₹68
For 2 years, CI − SI = P × (R/100)² = ₹68.
What is the simple interest on ₹14,000 at 8% per annum for 4 years?
- A₹4,928
- B₹4,480
- C₹3,360
- D₹1,120
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Answer: (B) ₹4,480
SI = P × R × T / 100 = 14000 × 8 × 4 / 100 = ₹4,480.
What is the difference between compound interest and simple interest on ₹9,600 for 2 years at 5% per annum?
- A₹24
- B₹36
- C₹34
- D₹480
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Answer: (A) ₹24
For 2 years, CI − SI = P × (R/100)² = ₹24.
What is the simple interest on ₹7,000 at 12% per annum for 3 years?
- A₹2,772
- B₹2,520
- C₹1,680
- D₹3,360
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Answer: (B) ₹2,520
SI = P × R × T / 100 = 7000 × 12 × 3 / 100 = ₹2,520.
What is the difference between compound interest and simple interest on ₹8,000 for 2 years at 5% per annum?
- A₹30
- B₹400
- C₹40
- D₹20
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Answer: (D) ₹20
For 2 years, CI − SI = P × (R/100)² = ₹20.
What is the simple interest on ₹24,500 at 12% per annum for 4 years?
- A₹14,700
- B₹11,760
- C₹12,936
- D₹2,940
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Answer: (B) ₹11,760
SI = P × R × T / 100 = 24500 × 12 × 4 / 100 = ₹11,760.
What is the difference between compound interest and simple interest on ₹2,800 for 2 years at 5% per annum?
- A₹17
- B₹7
- C₹14
- D₹10.50
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Answer: (B) ₹7
For 2 years, CI − SI = P × (R/100)² = ₹7.
What is the simple interest on ₹12,000 at 12% per annum for 5 years?
- A₹7,920
- B₹1,440
- C₹7,200
- D₹8,640
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Answer: (C) ₹7,200
SI = P × R × T / 100 = 12000 × 12 × 5 / 100 = ₹7,200.
What is the compound interest on ₹2,400 for 2 years at 10% per annum, compounded annually?
- A₹744
- B₹504
- C₹554.40
- D₹480
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Answer: (B) ₹504
CI = P[(1 + R/100)² − 1] = ₹504.
What is the simple interest on ₹30,000 at 4% per annum for 6 years?
- A₹6,000
- B₹7,200
- C₹8,400
- D₹1,200
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Answer: (B) ₹7,200
SI = P × R × T / 100 = 30000 × 4 × 6 / 100 = ₹7,200.
What is the difference between compound interest and simple interest on ₹10,400 for 2 years at 5% per annum?
- A₹26
- B₹39
- C₹52
- D₹520
Show answer
Answer: (A) ₹26
For 2 years, CI − SI = P × (R/100)² = ₹26.
What is the simple interest on ₹18,500 at 8% per annum for 2 years?
- A₹2,960
- B₹3,256
- C₹1,480
- D₹4,440
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Answer: (A) ₹2,960
SI = P × R × T / 100 = 18500 × 8 × 2 / 100 = ₹2,960.
What is the compound interest on ₹500 for 2 years at 10% per annum, compounded annually?
- A₹115.50
- B₹155
- C₹100
- D₹105
Show answer
Answer: (D) ₹105
CI = P[(1 + R/100)² − 1] = ₹105.
What is the difference between compound interest and simple interest on ₹3,700 for 2 years at 20% per annum?
- A₹148
- B₹296
- C₹158
- D₹222
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Answer: (A) ₹148
For 2 years, CI − SI = P × (R/100)² = ₹148.
What is the simple interest on ₹25,500 at 10% per annum for 2 years?
- A₹5,100
- B₹2,550
- C₹5,610
- D₹7,650
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Answer: (A) ₹5,100
SI = P × R × T / 100 = 25500 × 10 × 2 / 100 = ₹5,100.
What is the simple interest on ₹29,000 at 8% per annum for 5 years?
- A₹12,760
- B₹11,600
- C₹2,320
- D₹9,280
Show answer
Answer: (B) ₹11,600
SI = P × R × T / 100 = 29000 × 8 × 5 / 100 = ₹11,600.
These are RankerClub practice questions written in the CDS pattern. They are not official SSC/IBPS/RRB papers.
