What is the HCF and LCM of two prime number a and b? three alarm clocks ring at intervals of 6, 9 and 15 minutes respectively. if they start ringing together, after what time will they next ring together?
Answers
Answered by
1
Answer:
humidor to h ex up on TX in hip TX FL on go b
Answered by
0
Answer:
after 90 min they all start to ring together
Step-by-step explanation:
6=3×2
9=3×3
15=3×5
HCF is 3
LCM =3×3×2×5
LCM is 90
thank you
Similar questions