UPSC Prelims 2017 · CSAT (Paper 2) · Q35
Basic Numeracy
Medium · Averages (arithmetic sequence)
There are 15 two-digit consecutive even numbers. If 45 is the mean of the first 6 such numbers, what is the mean of all 15 numbers?
UPSC Prelims 2017 · CSAT (Paper 2) · Q35
Medium · Averages (arithmetic sequence)
There are 15 two-digit consecutive even numbers. If 45 is the mean of the first 6 such numbers, what is the mean of all 15 numbers?