Question
The average of 12 numbers is 120. The average of the
first 7 numbers is 75 and the average of the last 4 numbers is 53. What is the 8th number?Solution
Total sum of 12 numbers = 12 × 120 = 1440 Sum of first 7 numbers = 7 × 75 = 525 Sum of last 4 numbers = 4 × 53 = 212 According to question, => 1440 – (525 + 212) = 703
More Average Questions
√256 * 3 – 15% of 300 + ? = 150% of 160
(5.6 + 2.4 + 13.8 – 2.8) × 5 = ? × (12.5 – 7.5)
Solve: 3/4÷2/3 ​
(292 – 141) ÷ 5 + (40 ÷ 2) + 23 = ?
(26)2 = {(20% of 40% of 18200) ÷ ?} × 1664 ÷ 128Â
- What will come in place of (?) in the given expression.
(18.5 × 2) + (3.5 × 4) = ? What will come in the place of question mark (?) in the given expression?
48 X 2.5 + 20% of 150 = ? + 166
166/? = √576 - 3.25
[(36 × 15 ÷ 96 + 19 ÷ 8) × 38] = ?% of 608
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