The average of the first 18 positive multiples of 15 is:
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Correct answer: (D) 142.5
From RRB JE CBT-1 PYQ 20 Feb 2026, Shift 1 (9:00 AM)
This is question 56 of RRB JE CBT-1 PYQ 20 Feb 2026, Shift 1 (9:00 AM). See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.