Post-UTME Mathematics 2016 Objective — Question 27
Question 27 of 60 from the Post-UTME Screening (Post-UTME) Mathematics 2016 Objective paper, with the correct answer and a full explanation.
Advertisement
Sequence & Series 7. What is the sum of the sequence: 1, 100, 1000, ... 1,000,000,000?
- A. 11,111,111,11Correct
- B. 11,111,111,90
- C. 99,999,999,11
- D. 99,999,999,99
Explanation
This is a G.P. with a=1, r=10, n=10 terms; sum = (10^10-1)/9 = 1,111,111,111.
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.