Number System MCQ Questions Answers Quantitative Aptitude

a) 75

b) 93

c) 84

d) 57

View Answer
Option – a)

17) For any natural number n, n4 +n2 +1 is always

a) odd

b) even

c) either even or odd

d) none of these

View Answer
Option – a)

18) The unit digit in the expression

(256251 +36528+7354) is

a)4

b) 0

c) 6

d) 5

View Answer
Option – b)

19) The number of zero in 29 ! is

a) 4

b) 3

c) 6

d) 7

View Answer
Option – c)

20) The sum of first 20 odd counting numbers is

a) 20

b) 100

c) 400

d) 313

View Answer
Option – c)

21) Find the place value of 4 in 46127.

(a) 4

(b) 400

(c) 40000

(d) 4000

(e) None of the above

View Answer
Option – c)

22) The sum of the four consecutive even numbers is 284. What would be the smallest number?

(a) 72

(b) 74

(c) 68

(d) 66

(e) None of the above

View Answer
Option – c)

23) Find the sum of 1st and 2nd prime numbers.

(a) 5

(b) 3

(c) 7

(d) 2

(e) None of the above

View Answer
Option – a)

24) Find the difference of place value of 4 and face value of 3 in 3784105.

(a) 3997

(b) 1

(c) 1000

(d) 3845

(e) None of the above

View Answer
Option – a)

25) The number of all prime numbers less than 40 is …

(a) 15

(b) 18

(c) 17

(d) 12

(e) None of the above

View Answer
Option – d)

26) The product of two consecutive odd numbers is 6723. What is the greater number?

(a) 89

(b) 85

(c) 91

(d) 83

(e) None of the above

View Answer
Option – d)

27) Find the sum of first 25 natural numbers.

(a) 432

(b) 315

(c) 325

(d) 335

(e) None of the above

View Answer
Option – c)

28) What is the sum of all positive integers lying between 200 and 400 that are multiples of 7?

(a) 8729

(b) 8700

(c) 8428

(d) 8278

View Answer
Option – a)

29) The pair of numbers which are relatively prime to each other is

(a) (68, 85)

(b) (65, 91)

(c) (92, 85)

(d) (102, 153)

View Answer
Option – c)

30) How many rational numbers are there between 1 and 1000?

(a) 998

(b) 999

(c) 1000

(d) Infinite

View Answer
Option – d)
error: