AIC 1st Term Maths Exam for JS 3
  • 1. Convert 75 in base ten to base four
A) 112
B) 1023
C) 16
D) 1001011
  • 2. Convert 1264 in base eight to base ten
A) 6
B) 20
C) 692
D) 44
  • 3. Find the value of (101)3 in base two
A) 1111011
B) 1111101
C) 1000111
D) 1010110
  • 4. Calculate 324 + 233 in base six
A) 102
B) 233
C) 1050
D) 1001
  • 5. Find the difference between 42 in base nine and 111 in base five
A) 66
B) 9
C) 14
D) 7
  • 6. Given P = 242 in base five and Q = 14 in base five. Calculate PQ.
A) 10043
B) 12101
C) 101
D) 10005
  • 7. 11110 ÷ 110 in base two = _____
A) 1011
B) 110
C) 101
D) 6
  • 8. √2¼ is a _____ number
A) Irrational number
B) Rational number
  • 9. Write 8.3° as a rational number
A) 20/3
B) 43/9
C) 25/3
D) 314/99
  • 10. 5 rubbers cost #240 and 8 rubbers cost #384. (a) Does the cost of rubbers vary directly or inversely with the numbers bought? (b) Find the cost of 9 rubbers.
A) (a) Inversely proportional (b) #432
B) (a) Directly proportional (b) #432
C) (a) Directly proportional (b) #458
D) (a) Inversely proportional (b) #458
  • 11. Find the compound interest on #5 000 for 3 years at 5% per annum
A) #2 250.43
B) #788.125
C) #674.125
D) #10 674.3
  • 12. Factorise the quadratic expression d2 + 7d + 10
A) (d -2) (d + 5)
B) (d + 6) (d + 4)
C) (d + 2) (d + 5)
D) (d - 2) (d - 5)
  • 13. Factorise (5m + 2n) ( 6a + b) - (5m + 2n) ( a - 4b)
A) (5m + 2n) 5(a - b)
B) 5m + 2n) (5a - 3b)
C) (5m + 2n) (7a + 5b)
D) (5m + 2n) 5(a + b)
  • 14. Factorise the expression πR2 - πr2. Hence find the value of the expression when π = 22/7, R = 9 and r = 5
A) 176
B) 30
C) 22/7
D) 4400
  • 15. Solve the equation x -4/5 = 2 -x/2
A) x = -6
B) x = 4
C) x = 1/3
D) x = 18
  • 16. Clear the fraction in the equation 2t + 5/t -2 = 7/3
A) t = 29
B) t = -1/5
C) t = 1/4
D) t = 15/2
  • 17. Make x the subject of formula in h/x = k
A) h+k
B) h/k
C) hk
D) k/h
  • 18. Given 3x - 2y = 8, express x in terms of y and find x when y = 11
A) x = 8 - 2y/3, x = -10
B) x = 8 + 2y/3, x = 10
C) x = 8 (2y/3), x = -30
D) x = 8 (2y/3), x = 30
  • 19. If y = 3 - x, find the value of y when x = 5
A) 15
B) 2
C) -15
D) -2
  • 20. The formula c = 180n + 450 gives the weekly cost, c naira, of running a household for n people. Find the weekly cost for 5 people .
A) #1 450
B) #1 170
C) #2 450
D) #1 350
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