Q1. In a three digit number the digit in the unit's place is twice the digit in the ten's place and
$1.5$ times the digit in the hundred's plac.If sum of all the three digits of the number is $13$, what
is the number?
Q2. The difference between a number and $\frac{2}{5}$th of the number is $30$.The number is
Q3. What is the greater of two numbers whose product is $1092$ and sum of the two numbers exceeds their difference by $42$?
Q4. The difference between $58\%$ of a number and $39\%$ of the same number is $247$.What is $62\%$ ofthat number?
Q5. If the sum of four consecutive even numbers is $228$,which is the smallest of the numbers?
Q6. The product of two successive positive integers is 42.Which is the smallest integer?
Q7. The total number of integers between $200$ and $400$, each of which either begins with $3$ or ends with $3$ or both,is
Q8. If $a$ and $b$ are two distinct natural numbers, which one of the following is true?
Q9. The number obtained by interchanging the digits of a two digit number is less than the original number by $18$. If sum of the digits is $6$, what was the original two digit number?
Q10. How many numbers less than $1000$ are multiple of both $10$ and $13$?
Q11. The digit in the unit's place of a number is equal to the digit in the ten's place of half that number and the digit in ten's place of that number is less than the digit in the unit's lace of half of the number by $1$. If the sum of the digits of the number is seven, then what is the number?
Q12. The digits of a two-digit number are in ratio $2:3$ and the number obtained by interchanging the digits is bigger than the original number by $27$. What was the original number?
Q13. The ten's digit of a two-digit number is $4$ times of its unit digit and the sum of the digits be $10$. Then find the number
Q14. How many numbers are co-prime to $4608$ that lie between $1000$ and $2000$?