Adaptive Practice
Playing with Numbers
10 questions • Earn up to 107 XP • First attempt — go for 100%!
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Question 1 of 10
⏱ 0:30
Easy
If the HCF of two numbers is 6 and their LCM is 72, and one of the numbers is 18, what is the other number?
Medium
Find the smallest number which when divided by 12, 15 and 20 leaves a remainder of 7 in each case.
Easy
The sum of two numbers is 45 and their HCF is 9. If one number is 27, find the other number.
Easy
If the product of two numbers is 2028 and their HCF is 13, find their LCM.
Medium
A number when divided by 8, 12 and 18 leaves the same remainder. What is the smallest such number if the remainder is 5?
Easy
The HCF of two numbers is 5 and their LCM is 180. If one number is 45, find the other number.
Medium
If the difference between two numbers is 6 and their HCF is 6, what is the smallest possible sum of the two numbers?
Hard
Find the least number which when divided by 9, 12 and 15 leaves a remainder 4 in each case.
Hard
If the HCF of 4 numbers is 6 and their LCM is 180, find the product of the numbers if their product is equal to (HCF)^3 × (LCM)^2.
Hard
If the sum of two numbers is 91 and their HCF is 13, what is their LCM?