engineering recuitment AAI ATC Junior Executive 2025 Mock Test Series Mathematics Sequences and Series Arithmetic Progressions
If (m + 1)th, (n + 1)th and (r + 1)th terms of an AP are in GP and m, n, r are in HP, then the ratio of the first term of the AP to its common difference in terms of n is equal to
1
n/2
2
-n/2
3
n-3
4
-n/3