Question
Average 20 numbers is ‘x’. If the average of
first 12 numbers is 62.5 while average of last 5 numbers is 84.8 and 13th, 14th and 15th numbers are (3x - 49), (x + 52) and 183 respectively. Find the 14th number.Solution
According to question, => 20x = 62.5 × 12 + 84.8 × 5 + 3x – 49 + x + 52 + 183 => 16x = 1360 => x = 85 Therefore, 14th number = 85 + 52 = 137
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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