MCQ1: Let A consist of numbers 1, 3, 5, 7, 11, 13 and 17. Then, the set can be written as A = Answer: 1,3,5,13,17 MCQ2: Let B=x|x2&lt;20 the number of elements in B is …………. Answer: 2 MCQ3: Let Cx|x is all prime numbers less than 20< Answer: 6 MCQ4: Let D=x|4≤x&lt;9. Find n(D). Answer: 5 MCQ5: Let E=x|0&lt;x≤1. The number of element in E is……… Answer: 2 MCQ6: Given that F=x|x is a letter in the word 'state'</mfenced&g Answer: 5 MCQ7: Given that A=1,2,3,5,7,11 and B=2,3,7,11. Find nA∪B. Answer: 1 MCQ8: Given that B=x|x is the odd numbers less than 10 and & Answer: 10 MCQ9: Given that F=x|x-3x+2=0, G =1,2,2,1. H =1,2. Find n< Answer: 4 MCQ10: Given that L=3,4,5 and M=5,3,4. Then, η(L∪M)= n(L∩M) Answer: 3 MCQ11: Let L=1,2 and let M=1,2,3. From the question which one is correct? Answer: L is not comparable to M MCQ12: If M is a subset of N and N is a subset of P, then, M is a subset of P that is .. Answer: MCN and MCP implies MCN MCQ13: Let P=a,b,c,d. Find the number of subset of P. Answer: 4 MCQ14: Let P=1,3,7,8 and Q=2,4,7,9. Find n(P∩Q). Answer: 8 MCQ15: Let X=2,4,6,9 and Y=1,3,4. Find n(X∩Y). Answer: 1 MCQ16: IfX=1,x,3,4 and Y=r,s,t, n(X∩Y) is … Answer: 4 MCQ17: If X⊂Y and X≠Y, then X is a proper subset of .. Answer: Y MCQ18: Let E=2,4,6,… and E1={1,3,5,…}, then E∪E1 is a set of ……. numbers Answer: complex MCQ19: Given A=1,2,3,4, B=2,3,5, and C=2,4,6, find A<mo&g Answer: 1,2,3,4,5,6 MCQ20: If A={2,4,6,8} B=xx-2=0  C=x2≤x&lt;8</ Answer: 5 MCQ21: If X=1,2,3 Y={3,4,5} and Z=xx odd number</mi& Answer: 1 MCQ22: In the set of real numbers, which of these is true? Answer: N⊂Z⊂Q⊂R MCQ23: In geometry, the distance between two points that real numbers, x and y is |x – y| = …. Answer: |x – y| MCQ24: Consider x={x|2&lt;x≤7}, this set is described as ………. Answer: open interval MCQ25: Given that M={x|3&lt;x&lt;7}, the set has ……..interval. Answer: closed-open MCQ26: If B={x|2≤x≤9}, B can be described as ……..interval Answer: closed-open MCQ27: A set of the form x={x|x&gt;1} is called a set of …….intervals. Answer: definite MCQ28: A set of the form M={x|x≤5} is an infinite set of interval written as M = ? Answer: -∞, 5 MCQ29: A set M is bounded if there exists a positive number M such that ……… for all X∈M Answer: X&lt;M MCQ30: Let fx=x2 where x is a real number and let gx=x2 where x is a complex number. Then, f is not equal to g because they have ……….domains Answer: different MCQ31: If f:B⟶D, then f is called a one-one or ……..function. Answer: subjective MCQ32: Let f be ‘a’ function of X into Y, and let ‘b’ ϵ Y. Then, the inverse of ‘b’ denoted by f-1(b) therefore, Answer: f1b={x|xϵX;fx=b} MCQ33: Let f:A⟶B is one-to-one and onto, then f-1 Answer: A inverse function exists MCQ34: Let f:R→R be defined by fx=10 then f is a ………..since assigned to every element. Answer: product MCQ35: Let the function f:X→Y be one-one and onto or f1:Y→X exist, then f-1∘f1 and f< Answer: the identity function on X and on Y MCQ36: If ordered pairs (x+y,1) and (3,x-y) are equal, find x and y Answer: (3,1) MCQ37: Find the value of annuity N10000 for a period of 5 years at 5% at the beginning of year 2020. Answer: N 58019 MCQ38: The final value of a 10 year annuity due with nominal annual interest rate 9% and monthly payments of N10000. Answer: N165.60 MCQ39: Find the operating cash flow indicator ratio given that the management of NOUN has free cash flow of N25 billion and the net cash provided expenditure for a particular period stands at N35 billion. Answer: 71.43% MCQ40: Financial statements that are cash flow computations can be done by ………… method(s).   Answer: Direct and Indirect MCQ41: Find the angle between lines 2y = 3x – 8 and y = x.5 + 7.5 Answer: 1350  MCQ42: Given that ∫2 3f(x)dx, find the integral calculus Answer: 52 MCQ43: Find ∫15x2dx Answer: 4114 MCQ44: If dydx=2x+3, find y. Answer: A x2+3x+c MCQ45: Solve the differential equation x2-2x4 at y=0, x=1 Answer: y=1x+35x5+35 MCQ46: Evaluate ∫℮4xdx Answer: 4℮4x+C MCQ47: Evaluate ∫dx3-4x Answer: 4Ln3-4x+C MCQ48: ∫sin3×dx Answer: -cosx+cos3x3+c MCQ49: Solve x-y=10 and x+y=10. Simultaneously Answer: – 10, 0 MCQ50: Solve x-y=10 and x+y=10. Simultaneously, Answer: – 10, 0 Fill in the Blank (FBQs): FBQ1: If A=x|x2=16 then A is the set of x such that x squared equals 16 or ………………………………………………… Answer: A = {4,4} FBQ2: If B=x|x-2=8 means B is the set of x such that x ………………………………………… Answer: *minus 2 equals 8* FBQ3:  If D=x|x number of Federal universitie</m Answer: *{6}* FBQ4: S=x|x number of state capitals in Niger</m Answer: *36* FBQ5: Two sets A and B are equal if ………………………. Answer: *A = B* FBQ6: The null set ∅ is considered to be ……………………………….. Answer: *Subset of every set* FBQ7: …………………………….is a subset of itself Answer: *every set* FBQ8: Two sets X and Y are ……………………………if X⊂Y or Y⊂X Answer: *Comparable* FBQ9: Two sets X and Y are …………………………… if X⊄Y or Y⊄X Answer: *not comparable* FBQ10: Given the set 1, 2, 1, 2, {3,4} Answer: *Family of sets* FBQ11: Let M=a,1, 2, 3, 4,5, then, M is not family of sets e.g. a, ……………………………………… Answer: *3* FBQ12: Solve x-y=10 and x+y=10. Simultaneously, Answer: *10, 0* FBQ13: Two sets M and N are equal if and only if every element …… and every N belongs to M Answer: *in M belongs to N* FBQ14: The union of sets A and B is the set of all elements which belong to Answer: *A or B or both* FBQ15: A∪B means ……………………………………… Answer: *A union B* FBQ16: A∩B means _________ or set of all elements which belong to both A and B only Answer: *A intersection B* FBQ17: The set A-B, A∩B, (B-A) are mutually ____________that is intersection of any two sets is the null Answer: *Disjoint* FBQ18: …………………are positive integers Answer: *Natural numbers* FBQ19: The notation x&lt;10 means that x is a real number which is ______is hence x lies to the left of 10 Answer: *less than 10* FBQ20: The elements of the set A=x|2&lt;x&lt;7 are ………… Answer: *{3,4,5,6}* FBQ21: The set of the form A=x|x&gt;1 can be written as……. Answer: *{2,3,4………}* FBQ22: A function f of A and B is called ……………. if the same element of b∈B is assigned to every element in A. Answer: *constant function* FBQ23: Let f be a function of A and B, and let b∈B, then ___________ is denoted byf1(b) Answer: *inverse of b* FBQ24: A series or fixed payments required from you or paid to you at a specified frequency over the course of a fixed time period is called____________ Answer: *Annuities* FBQ25: A_______ is an annuity for which the payments continue forever. Answer: *Perpetuity* FBQ26: ________is the movement of money into or out of a business, project or financial product. Answer: *cash flow* FBQ27: A fund into which a company sets aside money overtime, in order to retire its preferred stock, bonds or debentures is called ___________ Answer: *sinking fund* FBQ28: Interest that is computed on the previously accumulated interest as well as on the principal is called________ Answer: *compound interest* FBQ29: One of the disadvantages of LP model is that ____are enormous even when assistance of large digital computers is available Answer: *Computational difficulties* FBQ30: Two matrices A and B are said to be equal, if they have the ______ and their corresponding entries are equal Answer: *same dimension* FBQ31: The set of all possible outcome of a random experiment is called__________ experiment Answer: *Random* FBQ32: ____________is an event that will never happen. Answer: *impossible event* FBQ33: If in two events, one of them precludes or prevents the occurrence of the other, then, it is called_____________ events Answer: *mutually exclusive* FBQ34: One important property of the integers is that they are closed under the operations ……… and ……….. Answer: *multiplication, subtraction* FBQ35: Rational numbers are closed under the operations addition, subtraction and multiplication but also division except_______ Answer: *Zero* FBQ36: The irrational numbers are those real numbers which are not rational. True or False Answer: *True* FBQ37: The irrational numbers φ are complement of rational numbers R. True or False Answer: *True* FBQ38: The notation 3&lt;x&lt;9 means x lies between 3 and 9 on the real line. True or False Answer: *True* FBQ39: If f maps A into B, the f is called a one-one or ………………. Answer: *infective function* FBQ40: If f maps A onto B, that is if every member of B appears as the image of at least one element of A, then if is onto or ………… Answer: *subjective function* FBQ41: Let W={days of the week} then W is ……… set Answer: *Finite* FBQ42: Let A={a,b} and D={a,c,d}, then sets A and D are not ………. since C∉A and b ∉D Answer: *Comparable* FBQ43: The family of all subsets of any set is called ……….. Answer: *power set* FBQ44: Solve x-y=10 and x+y=10. Simultaneously Answer: *0, – 10* FBQ45: The difference of sets M and N denoted by M – N, is the set of elements which belong to M but which do not belong to N. True or False. Answer: *True* FBQ46: A function of A onto B is called a ………… if the same element of b∈B is assigned to carry every element in A. Answer: *constant function* FBQ47: Let f:x→γ and g:γ→Z be two functions. Then, functions f and g denoted g.f:x→z is called ………………….. Answer: *product function* FBQ48: An ………………… is the one whose payments are made at the beginning of each period. Answer: *annuity-due* FBQ49: A …………. is a contract between you and an issuer whereby you agree to give the issuer principal and in return the issuer guarantees you variable payment over time. Answer: *variable annuity* FBQ50: An accounting statement called the …………………. which shows the amount of cash generated and used by a company in a given period. Answer: *statement of cash flows*