Free account: track your progress — Sign up free

JAMB Mathematics 2008 Objective — Question 20

Question 20 of 50 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2008 Objective paper, with the correct answer and a full explanation.

Advertisement

The fifth term of an A.P is 24 and the eleven term is 96. Find the first term

  • A. 12
  • B. 4
  • C. -12
  • D. -24Correct

Explanation

T5=a+4d=24. T11=a+10d=96. Subtracting: 6d=72, d=12. a=24-4(12)=-24.

Advertisement

Sign up free to unlock

  • Score tracking
  • Practice history
  • Saved questions
  • Progress dashboard
  • Personalized sessions
  • Weak-topic breakdown

…and/or go further with premium services and No Ads.