alleryStart learning →A GP has third term 12 and common ratio 2. Its first term is
A4
B1
C2
D3
Answer & Solution
Correct answer: D. 3
The third term is a x 2^2 = 4a, so a = 12/4 = 3.
Keep practising Sequence and Series
Browse all Sequence and Series questions for CA Foundation, or explore more Quantitative Aptitude topics.
Related questions
If the ratio of a GP has absolute value above 1, its termsAn AP with common difference 0 isAn AP has 3rd term 10 and 8th term 25. The sum of its first 10 terms isIn a positive GP, the square of any term equalsIn a harmonic progression, each term is the ... of its neighbours.In an AP, any middle term of three consecutive terms equals the ... of the other two.Which mathematician is said to have summed 1 to 100 by pairing ends at school?Which economist built on the contrast of geometric and arithmetic growth in his population