
The sum of all -digit numbers which are equal to times the sum of squares of their digits is

Important Questions on Playing with Numbers
In the question given below, the numbers in the figures are related. Identify their relationships and find the missing numbers in the given figures.

Which number will replace the question mark?

In the question given below, the numbers in the figures are related. Identify their relationships and find the missing numbers in the given figures.


If, in a two-digit number, the digit at unit place is and the digit at tens place is , then the two-digit number is _____.


Select the combination of letters that when sequentially placed in the blanks of the given series will complete the series.

The sum of three consecutive numbers is . Find the highest number-
1.
2.
3.
4.






In the question given below, the numbers in the figures are related. Identify their relationships and find the missing numbers in the given figures.

How many times does the number occur in unit's place for numbers ranging from to ?
1.
2.
3.
4.

1 USD = Rs. 67.89. A money changer adds a margin of Rs. 1.11. What will be the cost of 150 USD ?
1. Rs. 10,183
2. Rs. 10,350
3. Rs. 10,330
4. Rs. 10,450

Twice the difference between two numbers is equal to their sum. If one number is , Find the other number.
1.
2.
3.
4.

Which number will replace the question mark?


Consider a three-digit number with the following properties:
I. If its digits in units place and tens place are interchanged, the number increases by
II. If its digits in units place and hundreds place are interchanged, the number decreases by .
Now, suppose that the digits in tens place and hundreds place are interchanged. Then, the number

