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Entry Test MCQ :: Basic Algebra


41.  If x2 - y2 = 58 and x-y=4 what is the average of x and y?
A. 13 B. 27
C. 2 D. 3.6
E. 4    

42.  What is the value of x2 + 14x + 49 when x = 83?
A. 3300 B. 4900
C. 5000 D. 8100
E. 8279    

43.  x2+3x+2=
A. (x+1)(x-2) B. (x+2)(x+1)
C. (x+2)(x-1) D. (x-2)(x-1)
E. (x+3)(x-1)    

44.  x2+x-20=
A. (x+5)(x-4) B. (x+4)(x-5)
C. (x+2)(x-10) D. (x+10)(x-2)
E. (x+20)(x-1)    

45.  x2-5x-6=
A. (x+1)(x+67) B. (x+6)(x-1)
C. (x+2)(x+3) D. (x-6)(x+1)
E. (x-2)(x-3)    

46.  If x = a+b Y=(a-b) / (a+b) then xy = ?
A. (a-b)2 / (a-b) B. (a+b)/a
C. a2-b2 D. a+b
E. b+a    

47.  If a2-9 = 0 What is the value of a ?
A. 3 B. ?3
C. 3 D. none

48.  If 10a + 36=70/b what is a x b=
A. 7-10b/2 B. 7-18b/5
C. 7b.10-18/5 D. 7b-2
E. none    

49.  If (p2-q2) / (p+q) = 14 then p-q = ?
A. 2 B. 7
C. 10 D. 13
E. 14    

50.  If 16-a=20-b then a-b =?
A. ?4 B. 6
C. 4 D. ?6
E. 10    




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