Number System
Natural, whole, integers, rationals; divisibility and number properties.
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Take a full mock →Q1 · Number System · MEDIUM
A number when divided by 5 leaves a remainder of 3. What will be the remainder when the same number is divided by 15?
Q2 · Number System · HARD
The sum of two numbers is 45 and their HCF is 5. How many such pairs of numbers are possible?
Q3 · Number System · EASY
Which of the following is a rational number?
Q4 · Number System · EASY
What is the sum of the first 15 natural numbers?
Q5 · Number System · HARD
Find the smallest number which when divided by 12, 15, and 20 leaves a remainder of 5 in each case.