HCF & LCM
JKSSB Class-IV & MTS · Mathematics · 10 practice questions with answers and explanations: 0 Easy, 5 Medium, 5 Hard.
Sample questions
Sample Medium question 1
Find the smallest number that is exactly divisible by 6, 8 and 12.
- 48
- 24
- 12
- 72
Show answer
Answer: B. LCM(6, 8, 12): 6 = 2×3, 8 = 2³, 12 = 2²×3 → 2³×3 = 24.
Sample Hard question 2
Find the smallest number which leaves a remainder of 3 when divided by 4, 5 and 6.
- 63
- 60
- 243
- 123
Show answer
Answer: A. LCM(4, 5, 6) = 60. The smallest such number is 60 + 3 = 63.
More Mathematics topics for JKSSB Class-IV & MTS
- Algebra
- Average
- Boats & Streams
- Data Interpretation
- Geometry
- Height & Distance
- Mensuration
- Mixture & Alligation
- Number System
- Partnership
- Percentage
- Problems on Ages
- Problems on Trains
- Profit/Loss & Discount
- Ratio & Proportion
- Simple & Compound Interest
- Simplification & Approximation
- Surds & Indices
- Time & Work / Pipes & Cisterns
- Time, Speed & Distance
- Trigonometry