Question
Select the correct combination of mathematical signs
that can sequentially replace the “@” sign and balance the following equation. 12@5@7@2@195@3Solution
12 × 5 + 7 - 2 = 195 ÷ 3 60 + 7 – 2 = 65 65= 65
The average of 6 numbers is 25. The average of the first four numbers is 20 and the average of the last three numbers is 30. Find the fourth number.
The average age of A and B is 19 years. If A is to be replaced by C, the average would be 18 years. The average age of C and A is 20 years. Find the age...
The average of 4, 6, 8, 12 and x is 7 and the average of x, 9, 13, 15 and y is 9. What is the value of 2x – 3y?
The average score of 28 players in a team is 73. After two new players with scores (x + 8) and (x - 6) joined, the average score decreased by 2 points. ...
The average of four consecutive numbers is 48. What is the largest number in this group?
A group of students consists of 25 boys and the rest are girls. The average marks scored by boys is 72, and the average marks scored by girls is 84. If ...
What will be the average of odd numbers between 20 to 74?
The cost of packaging of the oranges is 15% the cost of fresh oranges themselves. The cost of oranges increased by 35% but the cost of packaging decreas...
- The mean weight of 20 athletes is 70.2 kg. If weights of two athletes are excluded, the mean of the remaining becomes 69.5 kg. Calculate the average weight...
If average of first 11 numbers is (n – 46) and the sum of remaining number is 1850. Find the value of ‘n’, if the average of 25 numbers is ‘n’...
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