Question
Average of four numbers is 16. Sum of smallest and
largest number is 48. If difference between other two numbers is 2, then find the square of second smaller number. TYPE 48Solution
Let four numbers in increasing order is a, b, c and d. => a + b + c + d = 4 x 16 = 64 => a + d = 48 => b + c = 16 According to question, => c – b = 2 => b = 7, c = 9 => b² = 49
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