CUET UG 2023 — General Test Quantitative Reasoning

LCM$(12, 15, 18) = 180$(12,15,18)=180. Smallest 5-digit multiple of 180: $10000/180 \approx 55.56$10000/180≈55.56, so next multiple is $56 \times 180 = 10080$56×180=10080. Check: $10080/12 = 840$10080/12=840, $10080/15 = 672$10080/15=672, $10080/18 = 560$10080/18=560. All integers.

Note: The NTA key marks option (B) 10020, but 10020 is not divisible by 18 ($10020/18 = 556.67$10020/18=556.67). We have selected 10080, which is the genuine smallest 5-digit common multiple.