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School of Distance Education


UNIVERSITY OF CALICUT

SCHOOL OF DISTANCE EDUCATION
B Com/BBA (2019 Admn.)
III SEMESTER COMMON COURSE BASIC NUMERICAL METHODS

QUESTION BANK

1. One equation y = 2x + 5 has
(a) No Solution (b) one solution

(c) Three solution (d) Infinitely many solution

2. One equation a +4=0
(a) Quadratic equation (b) Cubic equation

(c) Simple equation (d) None of these

3. One quadratic equation a + bx + c = 0 has equal roots if:
(a) b – 4ac < 0 (b) b – 4ac > 0 (c) b – 4ac = 0 (d) b – 4ac = 1
4. One expression b – 4ac is called ........................... of the quadratic equation.
(a) Discriminant (b) roots (c) Characteristics (d) None of these

5. One solution of the equation 8 = x is ……………………..

(a) 6 (b) 12 (c) 24 (d) 18
6. One equation 4 + 7 = 0 is known as
(a)Pure (b) General (c) Simple (d) None of these
7. One roots of the equation 3 − 1 = 0 are ………………………
(a) Irrational (b) Imaginary (c ) Rational (d) Integers
8. Simultaneous equations means a set of equations in .................................unknowns.
(a) One (b) Two (c) Three (d) Any number
9. One sum of the values 1,2, ....................... 20 is
(a) 500 (b) 420 (c) 520 (d)210

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10. One A.M. of a and b is …………………….

(a) ab (b) (c) + (d)

11. Given the term in the sequence 1, 3, 7, 15, 31, next term is
(a) 62 (b) 46 (c) 63 (d) 60
12. One nth term of a G.P. is …………………..
(a) arn (b) arn-1 (c ) anr (d) an-1r
13. One common difference of the A.P. 1, -1, -3, -5, ..................... is
(a) 1 (b) -1 (c) -2 (d) 2

14. One common ratio of the G.P. 1, , , ........................ is

(a) 3 (b) (c) (d) 6

15. If 2, x, 8 are the successive terms of a G.P., the value of x is
(a) 5 (b) 4 (c) -4 (d) 4
16. Given the term in the sequence of 1, 3, 7, 15, 31, next term is
(a) 63 (b) 62 (c) 64 (d)65
17. If the sum of two numbers is 8 and their product is 15, numbers are
(a)-5, -3 (b) 5, 3 (c ) 5, -3 (d) 2, 6
18. What is the common difference of the A.P. 4, -8, -20…………………….
(a) -4 (b) 12 (c) -12 (d) -8
19. Find x if the number x, 7, 28 from a G.P.

(a) 4 (b) 0 (c) (d)

20. Find the common ratio of the following: 9, 6, 4

(a) 3 (b) 2 (c) (d) None of these

21. Find the 7th term of the series 1, 4, 7 …………………………
(a) 22 (b) 19 (c) 16 (d) 25

22. Find the sum of 1, 2, 3 .............................. 200
(a) 206 (b) 20100 (c) 2010 (d) 2,01,000
23. Find the tenth term of the series 4, 2, 0, -2
(a) -12 (b) -10 (c) -8 (d) -14
24. Find the 15th term 4, 2, 0, -2
(a) -24 (b) -22 (c ) -26 (d) -20