Question
Average of four numbers is 16. Sum of smallest and
largest number is 45. If difference between other two numbers is 1, then find the square of second smaller number.Solution
Let four numbers in increasing order is a, b, c and d. => a + b + c + d = 4 x 16 = 64 => a + d = 45 => b + c = 19 According to question, => c – b = 1 => b = 9, c = 10 => b² = 81
More Average Questions
12, 34, 64, ?, 140, 182
196, 196, 203, 229, 292, ?
80, 116, 52, ?, 8, 204
150 - 10 × ( 7 - 2)/4 × 8 = ?
...Choose the missing term.
3F, 6G, 11I, 18L,?
What will come in place of the question mark (?) in the following series?
112, 124, 138, 154, ?, 196
100 180 294 448 648 ?
15, 23, 30, 36, 41, ?
188    178    158   ?     88    38
32   48   96   ?   720   2520
Relevant for Exams:
