RRB ALP CBT I 16 Feb 2026 Shift 1 Paper

Concept:For decimal numbers, convert them to integers by making the decimal places equal, then shift the decimal point back after finding the LCM.Explanation:Write each number with two decimal places: $0.90$, $3.70$, and $0.54$.Now treat them as integers: $90$, $370$, and $54$.Find the LCM of these integers using prime factorization.$90 = 2 \times 3^2 \times 5$$370 = 2 \times 5 \times 37$$54 = 2 \times 3^3$LCM $= 2 \times 3^3 \times 5 \times 37 = 9990$Since we removed two decimal places, divide by $100$: $9990 \div 100 = 99.9$.Therefore, the LCM of $0.9$, $3.7$, and $0.54$ is $99.9$.Answer:$99.9$, which is option C.