NDA-CDS · Mathematics

Simple Interest questions with answers

Build accuracy with explanation-led practice, then open a focused search or timed exam drill.

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PRACTICE PREVIEW

Five questions to begin your revision

Open each answer only after choosing your own response.

01Medium · ✓ Verified answer

NDA and CDS practice check: Find the simple interest on ₹4,200 at 5% per year for 2 years.

  1. ₹504
  2. ₹420
  3. ₹462
  4. ₹378
Check answer and explanation +
B — ₹420

Simple interest = principal × rate × time ÷ 100 = ₹4,200 × 5 × 2 ÷ 100 = ₹420. The displayed answer was independently recomputed during publication.

Source: NCERT Mathematics Classes VI–X · Simple Interest; mapped to the published NDA and CDS quantitative/numeracy area; answer independently recomputed. Syllabus-aligned practice—not a previous-year question.
02Medium · ✓ Verified answer

NDA and CDS high-priority drill: Find the simple interest on ₹4,400 at 6% per year for 3 years.

  1. ₹792
  2. ₹836
  3. ₹748
  4. ₹880
Check answer and explanation +
A — ₹792

Simple interest = principal × rate × time ÷ 100 = ₹4,400 × 6 × 3 ÷ 100 = ₹792. The displayed answer was independently recomputed during publication.

Source: NCERT Mathematics Classes VI–X · Simple Interest; mapped to the published NDA and CDS quantitative/numeracy area; answer independently recomputed. Syllabus-aligned practice—not a previous-year question.
03Medium · ✓ Verified answer

NDA and CDS foundation revision: Find the simple interest on ₹4,600 at 7% per year for 4 years.

  1. ₹1,334
  2. ₹1,242
  3. ₹1,380
  4. ₹1,288
Check answer and explanation +
D — ₹1,288

Simple interest = principal × rate × time ÷ 100 = ₹4,600 × 7 × 4 ÷ 100 = ₹1,288. The displayed answer was independently recomputed during publication.

Source: NCERT Mathematics Classes VI–X · Simple Interest; mapped to the published NDA and CDS quantitative/numeracy area; answer independently recomputed. Syllabus-aligned practice—not a previous-year question.
04Medium · ✓ Verified answer

NDA and CDS speed-building set: Find the simple interest on ₹4,800 at 8% per year for 2 years.

  1. ₹720
  2. ₹864
  3. ₹768
  4. ₹816
Check answer and explanation +
C — ₹768

Simple interest = principal × rate × time ÷ 100 = ₹4,800 × 8 × 2 ÷ 100 = ₹768. The displayed answer was independently recomputed during publication.

Source: NCERT Mathematics Classes VI–X · Simple Interest; mapped to the published NDA and CDS quantitative/numeracy area; answer independently recomputed. Syllabus-aligned practice—not a previous-year question.
05Medium · ✓ Verified answer

NDA and CDS accuracy checkpoint: Find the simple interest on ₹5,000 at 9% per year for 3 years.

  1. ₹1,450
  2. ₹1,350
  3. ₹1,400
  4. ₹1,300
Check answer and explanation +
B — ₹1,350

Simple interest = principal × rate × time ÷ 100 = ₹5,000 × 9 × 3 ÷ 100 = ₹1,350. The displayed answer was independently recomputed during publication.

Source: NCERT Mathematics Classes VI–X · Simple Interest; mapped to the published NDA and CDS quantitative/numeracy area; answer independently recomputed. Syllabus-aligned practice—not a previous-year question.
✓

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