Question
The average of 10 numbers is 102. The average of the
first 5 numbers is 78 and the average of the last 4 numbers is 46. What is the 6th number?Solution
Total sum of 10 numbers = 10 × 102 = 1020 Sum of first 5 numbers = 5 × 78 = 390 Sum of last 4 numbers = 4 × 46 = 184 According to question, => 1020 – (390 + 184) = 446
More Average Questions
4, 6, 12, 30, ?, 315, 1260Â
Find the missing term in the series:
1, 4, 9, 16, 25, ?, 49
36, 48, 24, 60, ?, 72
?, 15, 45, 225, 1575, 14175
What should come in place of (?) question mark in the given number series.
2, 6, 15, 31, 56, ?
10,14,26,42,70,?
53 × 38 + 32 × âˆ›54872 = ?
168, 164, 155, 139, ?, 78
18, 30, 46, 66, 90, ?
152    142    122   ?     52    2
Relevant for Exams:
