CA Foundation P3 · Chapter 6 · Question 1 of 9
The 15th term of the A.P. 7, 11, 15, 19, ... is:
Test yourself: pick an answer
Reveal answer & explanation
Correct answer: D) 63
Explanation
tₙ = a + (n − 1)d with a = 7 and d = 4. t₁₅ = 7 + 14 x 4 = 63. Using n instead of n − 1 gives 7 + 60 = 67.
More Sequence and Series - Arithmetic and Geometric Progressions MCQs
- Q3How many terms of the A.P. 5, 9, 13, ... must be taken so that their sum is 230?
- Q4The 8th term of the G.P. 3, 6, 12, 24, ... is:
- Q5The sum to infinity of the G.P. 12, 4, 4/3, ... is:
- Q6The sum of the first 6 terms of the G.P. 2, 6, 18, ... is:
- Q7Three numbers in A.P. have sum 27 and product 504. The largest of the numbers is: