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
Find the simplified value of the given expression:
{(1 x 2) + (3 + 4) - (5 x 6) + (7 + 8) - (9 x 10)}
40 × 5 + 27) × 9 = ?
4368 + 2158 – 596 - ? = 3421 + 1262
115% of 40 + 3 × 4 = ? × 11 – 8
2850 ÷ 2.5 - ? × 42 = 300
What will come in the place of question mark (?) in the given expression?
(5/8) × 1600 + (2400 ÷ 25) = ?Â
236.23-653.23+696.23=?
15848 ÷ 4 – 793 × 6 + 3628 = 3 × ?
(1/3) + (2/5) + (3/4) + (11/10) = 3 – (?/12)
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