HSSC CET · Quantitative Ability
Whole numbers, integers, divisibility and place value.
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Q1 · Number System · HARD
A number when divided by 6 leaves a remainder 3. When the same number is divided by 15, the remainder is 3. What is the smallest such three-digit number?
Q2 · Number System · MEDIUM
The sum of the digits of a two-digit number is 9. If 27 is added to the number, the digits get reversed. What is the original number?
Q3 · Number System · EASY
How many natural numbers less than 500 are divisible by both 6 and 8?
Q4 · Number System · MEDIUM
A five-digit number 3a52b is divisible by 9. If the digit at the unit place (b) is 3 more than the digit at the ten-thousand place (a), what is the value of a + b?
Q5 · Number System · MEDIUM
A number when divided by 7 leaves a remainder of 4. What will be the remainder when the square of the same number is divided by 7?