Question Detail

MTH 101 Arithmetic Progression Objective Question

Question

If the ratio of sums of n terms of two APs is (7n + 1) : (4n + 27), find the ratio of their 11th terms.
Options
A 4 : 3
Correct Answer
B 3 : 4
C 7 : 4
D 5 : 3
Correct Answer

Option A is the correct answer.

Detailed Explanation

Substitute n = 2(11) - 1 = 21: [7(21) + 1] / [4(21) + 27] = 148 / 111 = 4/3.

Hint

No hint available

Question Info