Number System Quantitative Aptitude MCQ Questions Answer
The number system is the foundation of mathematics, serving as a fundamental concept across various mathematical disciplines. Its importance extends beyond mathematics, influencing fields like science, engineering, and technology. Mastering the number system is crucial for a strong mathematical foundation. In this article, we present a collection of multiple-choice questions (MCQs) designed to test and enhance your understanding of the number system.
1)The unit digit in the product of (2157)173 is
a) 3
b) 7
c) 9
d) 1
2) The unit digit in the expression
(111+122+133+144+155+166) is
a)1
b) 9
c) 7
d) 0
3) which of the following numbers should be added to 11158 to make it exactly divisible by 77 ?
a) 9
b) 8
c) 7
d) 5
4) How many numbers between 200 and 600 are divisible by 4,5 and 6 ?
a) 5
b) 6
c) 7
d) 8
5)When n is divided by 4, the remainder is 3. What is the remainder when 2n is divided by 4 ?
a) 1
b) 2
c) 3
d) 6
6)If the sum of a number and its square is 240. What is the number ?
a) 15
b) 18
c) 25
d) 22
7) The digit in the unit place of the number represented by (795 – 358) is
a) 0
b) 7
c) 6
d) 4
8) The number nearest to 99547 which is exactly divisible by 687 is
a) 100166
b) 98928
c) 99479
d) 99615
9) The number of zero in 18! Is
a) 4
b) 6
c) 3
d) 8
10) If a3b =abc=180 and a,b,c are positive integers. Then, value of c is
a) 110
b) 15
c) 25
d) 1
11) The sum of first 45 natural number is
a) 2070
b) 1035
c) 1280
d) 2140
12) The sum of three numbers is 68. If the ratio between first and second be 2 : 3 and that between second and third be 5 : 3, then the 2nd number is
a) 30
b) 20
c) 58
d) 48
13) Two fifth of thirty percentage of one fourth of a number is 15. What is 20% of that number ?
a) 90
b) 150
c) 100
d) 120
14) What least value should be assigned to, so that the number 451*603 is exactly divisible by 9?
a) 2
b) 5
c) 8
d) 7
15) What will be the remainder when (96 +1) is divided by 8 ?
a) 0
b) 3
c) 7
d) 2
16) The sum of the digits of a two digit number is 12. If the digit are reversed, the number is decreased by 18. The number is