Answer:
Explanation:
Let's go:
In this case, all negative numbers in this sequence is less than 5. In this sequence, the first term is positive, the second term is negative, the third term is positive, the fourth term is negative, etc. 25 terms are negative. So, 25 numbers are less than 5. However, the first term is 1. It's less than 5, too. Now, look this term:
a3 = a1.q^(3 - 1)
a3 = 1.(- 2)^2
a3 = 1.4
a3 = 4
4 is less than 5. Then, the answer 27 (all negative numbers (25 terms) and the first and third terms)
I hope I've helped you.