Question
A cybercrime technique involves sending fake emails or
messages that appear genuine to steal confidential information. Which cyber attack matches this description?Solution
Phishing – Fake communication attack
- Find out how much the Least Common Multiple exceeds the Highest Common Factor of 16, 40, and 80.
Three numbers are in the ratio 2:5:7 respectively. If the HCF of the numbers is 6, then find the LCM of the numbers.
The smallest number which when divided by 25 and 30 leaves remainder 10 and 15 respectively is:
The sum of two numbers is 444 and their HCF is 37. Find all the possible pairs of such numbers?
The HCF of two numbers is 7. Which of the following can never be their LCM?
The LCM of two numbers is 1800 while their HCF is 36. If one of the numbers is 432, then the other number is:
The least number which when divided by 9, 12, 15, 18, and 21 leaves the same remainder 7 in each case, is:
If total number of factors of 6,615 is 'x', then find the value of (x - 2)(x + 4).
The H.C.F. of two numbers is 20 and the other two factors of their L.C.M. are 9 and 13. The larger of the two numbers is:
The HCF of two numbers is 64, and their LCM is 1920. What is the sum of the numbers?
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