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Wednesday, 04 November 2026
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Mathematics Past Questions and Answers

Jamb 2012 Mathematics Questions

Question 36:
Find the standard deviation of 2,3,8,10 and 12
  • A 3.9
  • B 4.9
  • C 5.9
  • D 6.9
View Answer & Explanation
Question 37:
Evaluate n+1Cn-2 If n =15
  • A 3630
  • B 3360
  • C 1120
  • D 560
View Answer & Explanation
Question 38:
In how many ways can the letters of the word TOTALITY be arranged?
  • A 6720
  • B 6270
  • C 6207
  • D 6027
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Question 39:
The probability that a student passes a physics test is \(\frac{2}{3}\). If he takes three physics tests, what is the probability that he passes two of the tests?
  • A \(\frac{2}{27}\)
  • B \(\frac{3}{27}\)
  • C \(\frac{4}{27}\)
  • D \(\frac{5}{3}\)
View Answer & Explanation
Question 40:
The probabilities that a man and his wife live for 80 years are \(\frac{2}{3}\) and \(\frac{3}{5}\) respectively. Find the probability that at least one of them will live up to 80 years
  • A \(\frac{2}{15}\)
  • B \(\frac{3}{15}\)
  • C \(\frac{7}{15}\)
  • D \(\frac{13}{15}\)
View Answer & Explanation