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The smallest number which when increased by 17, is exactly divisible by both 520 and 468 is -

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Important Questions on Number Systems

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Quantitative Aptitude>Arithmetic>Number Systems>Basics of Number Systems
For a real number r let r denote the largest integer less than or equal to r. Let a>1 a real number which is not an integer and k be the smallest positive integer such that ak>ak Then which of the following statement is always true?
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Quantitative Aptitude>Arithmetic>Number Systems>Basics of Number Systems
The largest non-negative integer k such that 24k divides 13! is
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Quantitative Aptitude>Arithmetic>Number Systems>Basics of Number Systems
For a real number r we denote by r the largest integer less than or equal to r. If x, y are real numbers with x, y ≥1 then which of the following statements is always true?
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Quantitative Aptitude>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

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Quantitative Aptitude>Arithmetic>Number Systems>Basics of Number Systems
A thrice of the square of a natural number decreased by 4 times the number is equal to 50 more than the number. Find the number.
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Quantitative Aptitude>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 

HARD
Quantitative Aptitude>Arithmetic>Number Systems>Basics of Number Systems
The function f :N→I defined by fx=x-5x5 , where N is the set of natural numbers and x denotes the greatest integer less than or equal to x, is:
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Quantitative Aptitude>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?
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Quantitative Aptitude>Arithmetic>Number Systems>Basics of Number Systems
Three-digit numbers are formed from the digits 1,2 and 3 in such a way that the digits are not repeated. What is the sum of such three-digit numbers?
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Quantitative Aptitude>Arithmetic>Number Systems>Basics of Number Systems
How many natural numbers n are there such that n!+10 is a perfect square ?
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Quantitative Aptitude>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

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Quantitative Aptitude>Arithmetic>Number Systems>Basics of Number Systems
The sum of four consecutive even numbers is 107 more than the sum of three consecutive odd numbers. If the sum of the smallest odd number and the smallest even number is 55, then what is the smallest even number?
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Quantitative Aptitude>Arithmetic>Number Systems>Basics of Number Systems
The difference of the cubes of two consecutive numbers is 127. What are the numbers?
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Quantitative Aptitude>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

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Quantitative Aptitude>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?
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Quantitative Aptitude>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 _____.
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Quantitative Aptitude>Arithmetic>Number Systems>Basics of Number Systems
If 14 of third-part of number is 5, then the number is:
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Quantitative Aptitude>Arithmetic>Number Systems>Basics of Number Systems
The number of distinct primes dividing 12!+13!+14! Is
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Quantitative Aptitude>Arithmetic>Number Systems>Basics of Number Systems
If a quantity is divided in the ratio 3:5, the larger part is 75. Find the quantity.
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Quantitative Aptitude>Arithmetic>Number Systems>Basics of Number Systems
The annual salary of Arun is Rs. 7.68 lakh. In a month if he spends Rs. 12000 on his children, 113th of rest on food and Rs. 8000 in mutual funds from his monthly salary, then find the monthly saving he is left with.