Given that HCF(a, b) = 6, LCM(a, b) = 180, and a = 54, find b.
Correct answer(s):
- 20
Topic
Number Properties
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Quizzes in Number Properties for HSC
Select all numbers that are perfect squares from: 2, 16, 27, 49, 50.
Correct answer(s):
- 16
- 49
What is the smallest nonnegative integer that must be added to 4,589 so the sum is divisible by 9?
Correct answer(s):
- 1
How many trailing zeros are there at the end of 100! (100 factorial)?
Correct answer(s):
- 24
Given two positive integers a and b with GCD(a,b) = 6 and LCM(a,b) = 180, and a = 36, find b.
Correct answer(s):
- 30