EASY
Earn 100

There are four prime numbers written in ascending order. The product of the first three is 385 and that of the last three is 1001. The last number is :

50% studentsanswered this correctly

Important Questions on Number Systems

EASY
Numerical and Mental Ability>Arithmetic>Number Systems>Basics of Number Systems
Find the number that is different from other options in the given list of numbers.
EASY
Numerical and Mental Ability>Arithmetic>Number Systems>Basics of Number Systems
The sum of two digits of a number is 13. If 9 is subtracted from the number, the digits are interchanged. What is the number?
EASY
Numerical and Mental Ability>Arithmetic>Number Systems>Basics of Number Systems
Which of the following numbers is perfectly divisible by 4?
EASY
Numerical and Mental Ability>Arithmetic>Number Systems>Basics of Number Systems
1800 chocolates were distributed among the students of a class. Each student got twice as many chocolates as the number of students in the class. Calculate the number of students in the class.
EASY
Numerical and Mental Ability>Arithmetic>Number Systems>Basics of Number Systems

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

MEDIUM
Numerical and Mental Ability>Arithmetic>Number Systems>Basics of Number Systems
Which of the following numbers is divisible by 9? 
 
MEDIUM
Numerical and Mental Ability>Arithmetic>Number Systems>Basics of Number Systems
The least number, which is to be added to the greatest number of 4 digits so that the sum may be divisible by 345, is _____.
EASY
Numerical and Mental Ability>Arithmetic>Number Systems>Basics of Number Systems
The sum of two numbers is 9. The sum of their reciprocals is 12. Find one of the numbers is : 
MEDIUM
Numerical and Mental Ability>Arithmetic>Number Systems>Basics of Number Systems
If 59 is added to a square of a number, the result is 900. What is the number?
EASY
Numerical and Mental Ability>Arithmetic>Number Systems>Basics of Number Systems
The difference of the cubes of two consecutive numbers is 127. What are the numbers?
EASY
Numerical and Mental Ability>Arithmetic>Number Systems>Basics of Number Systems
The sum of four consecutive odd numbers is 328. Find the largest number.
EASY
Numerical and Mental Ability>Arithmetic>Number Systems>Basics of Number Systems

The sum of three consecutive numbers is 126. Find the highest number-

1. 41
2. 42
3. 43
4. 44

EASY
Numerical and Mental Ability>Arithmetic>Number Systems>Basics of Number Systems

Find such number, so that one fourth of the number is 8 more than 5:

EASY
Numerical and Mental Ability>Arithmetic>Number Systems>Basics of Number Systems
Find the unit place digit in (82)102+(183)103
MEDIUM
Numerical and Mental Ability>Arithmetic>Number Systems>Basics of Number Systems
A number M is divisible by 25. If (M+5) (M+1) is divided by 25, then what will be the remainder?
MEDIUM
Numerical and Mental Ability>Arithmetic>Number Systems>Basics of Number Systems

If A is integer, B is natural number then B-A=? 

EASY
Numerical and Mental Ability>Arithmetic>Number Systems>Basics of Number Systems
Which of the following number is an odd and prime number?
EASY
Numerical and Mental Ability>Arithmetic>Number Systems>Basics of Number Systems
If 14 of third-part of number is 5, then the number is:
EASY
Numerical and Mental Ability>Arithmetic>Number Systems>Basics of Number Systems

Twice the difference between two numbers is equal to their sum. If one number is 15, Find the other number.

1. 15
2. 10
3. 5
4. 20 

EASY
Numerical and Mental Ability>Arithmetic>Number Systems>Basics of Number Systems

How many times does the number 3 occur in unit's place for numbers ranging from 1 to 100?

1. 20
2. 11
3. 10
4. 19