- A45 and 216
- B72 and 135
- C90 and 108
- D36 and 280
Step-by-Step Solution
Both must be multiples of 18: , with 5, 6 co-prime and . (45, 216) has the right product but HCF 9.
Answer: C) 90 and 108
Which pair of numbers has HCF 18 and LCM 540?
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