01Medium · ✓ Verified answer
NDA and CDS practice check: What is the least common multiple of the consecutive numbers 19 and 20?
- 419
- 380
- 399
- 360
Check answer and explanation +
B — 380Consecutive integers are coprime, so their LCM is their product: 19 × 20 = 380. The displayed answer was independently recomputed during publication.
Source: NCERT Mathematics Classes VI–X · LCM; 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: What is the least common multiple of the consecutive numbers 20 and 21?
- 420
- 440
- 399
- 461
Check answer and explanation +
A — 420Consecutive integers are coprime, so their LCM is their product: 20 × 21 = 420. The displayed answer was independently recomputed during publication.
Source: NCERT Mathematics Classes VI–X · LCM; 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: What is the least common multiple of the consecutive numbers 21 and 22?
- 483
- 440
- 505
- 462
Check answer and explanation +
D — 462Consecutive integers are coprime, so their LCM is their product: 21 × 22 = 462. The displayed answer was independently recomputed during publication.
Source: NCERT Mathematics Classes VI–X · LCM; 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: What is the least common multiple of the consecutive numbers 22 and 23?
- 483
- 551
- 506
- 528
Check answer and explanation +
C — 506Consecutive integers are coprime, so their LCM is their product: 22 × 23 = 506. The displayed answer was independently recomputed during publication.
Source: NCERT Mathematics Classes VI–X · LCM; 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: What is the least common multiple of the consecutive numbers 23 and 24?
- 599
- 552
- 575
- 528
Check answer and explanation +
B — 552Consecutive integers are coprime, so their LCM is their product: 23 × 24 = 552. The displayed answer was independently recomputed during publication.
Source: NCERT Mathematics Classes VI–X · LCM; mapped to the published NDA and CDS quantitative/numeracy area; answer independently recomputed. Syllabus-aligned practice—not a previous-year question.