WB Police PC · Elementary Mathematics
Number properties and divisibility.
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Q1 · Number System · MEDIUM
A number when divided by 7 leaves a remainder of 4. What will be the remainder when the same number is divided by 14?
Q2 · Number System · EASY
Find the largest 4-digit number which is divisible by 12, 15 and 18.
Q3 · Number System · MEDIUM
The sum of two numbers is 216 and their HCF is 27. How many pairs of such numbers are possible?
Q4 · Number System · HARD
A number N when divided by 15 leaves remainder 7, and when divided by 21 leaves remainder 13. What is the smallest positive value of N?
Q5 · Number System · EASY
What is the smallest 4-digit number that is divisible by both 12 and 15?