Traffic lights at three different road crossing change after 48 seconds, 72 seconds and 108 seconds respectively. At what time will they change together again if they change simultaneously at 7 A.M.?
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If the product of two numbers is 4032 and their HCF is 12, find their LCM.
Solution:
The HCF and LCM of two numbers are 9 and 270 respectively. If one of the numbers is 45, find the other number.
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More Solutions:
- Examine the following numbers for divisibility by 6:
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- In each of the following replace ‘*’ with a digit
- Which of the following numbers are prime: 101
- A number is divisible by 12.
- Here are two different factor trees of the number 90.
- Find the prime factorization of the following numbers:
- Write the smallest and the greatest 3-digit numbers.
- Find the H.C.F. of the given numbers.
- HCF of two consecutive natural numbers is ……