BSSC Inter Level · General Mathematics
Lowest common multiple and highest common factor.
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Q1 · LCM and HCF · EASY
Find the HCF of 24 and 36.
Q2 · LCM and HCF · MEDIUM
The LCM of two numbers is 180 and their HCF is 15. If one number is 45, find the other number.
Q3 · LCM and HCF · MEDIUM
Find the least number which when divided by 12, 15, 20 and 54 leaves a remainder of 8 in each case.
Q4 · LCM and HCF · HARD
Three bells ring at intervals of 9, 12 and 15 minutes respectively. If they all ring together at 8:00 AM, at what time will they next ring together?
Q5 · LCM and HCF · MEDIUM
The HCF of two numbers is 18 and their LCM is 1080. If one number is 108, what is the other number?