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 (2x - 49), (x + 52) and 183 respectively. Find the 14th number.Solution
According to question, => 20x = 62.5 × 12 + 84.8 × 5 + 2x – 49 + x + 52 + 183 => 17x = 1360 => x = 80 Therefore, 14th number = 80 + 52 = 132
More Average Questions
12.5% of (100 + ?) = 40
2/9 of 5/8 of 3/25 of ? = 40
24 × √? + 4008 ÷ 24 = 40% of 200 + 327
7(1/2) – 3(5/6) = ? − 2(7/12)
280 ÷ 14 + 11 × 12 – 15 × 6 = ?
1550 ÷ 62 + 54.6 x 36 = (? x 10) + (28.5 x 40)
25% of 1000 + 10% of 150 – 22 × ? = 45
√ 729 × 5 – 220 % of 15 + ? = 120% of 160
What will come in the place of question mark (?) in the given expression?
(40% of ? × 43 ) – 232 = 751
180 % of 45 + √144 × 8 = ?2 + 80 % of 70
