SSC CGL Official PYQQuantitative Aptitude12 Sep 2025 (Shift 1)
Q.
What is the average of all integers between 150 and 300 that are exactly divisible by 13?
A
a) 220
B
b) 227.5
C
c) 230
D
d) 235.5
Correct Answer: Option B)
Detailed Step-by-Step Explanation:
First integer divisible by 13 > 150 is 156. Last integer < 300 is 299. Since it is an AP, Average = (First + Last) / 2 = (156 + 299) / 2 = 455 / 2 = 227.5.