Question
Find the average of the following sets of numbers.
693, 456, 876, 532, 934, 691, 596, 398, 682Solution
As we know, Average = (sum of all observation/Total number of observation) ∴ Required average = (693 + 456 + 876 + 532 + 934 + 691 + 596 + 398 + 682)/9 = 650.89
- The ratio of the current ages of Asha and Nisha is 5:4. If Asha’s age three years ago was equal to Nisha’s age four years from now, then what is Asha�...
The age of a father is 4 times that of his son. After 6 years, the father will be 3 times as old as his son. Find the present age of the son.
The ratio of the ages of A, B and C, 5 years ago, was 4 : 5 : 7. The sum of their present ages is 135 years. What will be the sum of the ages (in years...
- The ratio of present ages of Ankit to that of Bhavesh is 3:5 while the ratio of present ages of Karan to that of Bhavesh is 2:5. If the age of Karan, 5 yea...
Sushil’s present age is 1/2 times of her father’s age. After 13 years, father’s age will be 3 times the age of Sonu. If 3 years ago So...
18 years ago the average age of a family of four members was 45 years. Two children were born in that span of 18 years. The present average age of the f...
The sum of ages of organization members (including clerk and managers) is 280 years. The total ages of clerks and managers are in the ratio 2:3 and the ...
- A person 'X' is 8 years younger than 'Y' and also 13 years less than twice the age of 'Z'. Given that the ages of 'Y' and 'Z' are in the ratio 5:3, determi...
The present age of A is 9/5 times to that of his marriage age. Present age of his brother is 1/2nd of his present age. If A was married 24 years ago the...
The average ages of A, B and C is 20% more than the average ages of A and B. 10years hence from now, the ratio of the ages of A and C will be 3:5, respe...