If x + y + z = 0, then what is the value of (3y2 + x2 + z2)/(2y2 – xz)?
The present age of A is 9/4 times to that of his marriage age. Present age of his brother is 1/3rd of his present age. If A was married 35 years ago the...
The present age of A is 7/5 times to that of his marriage age. Present age of his brother is 1/2nd of his present age. If A was married 20 years ago the...
In an office, there are 18 employees. The average age of all the employees is 28 years. If the age of three senior managers is included, then the averag...
Novita's current age is 37.5% greater than Suzuka's, with a difference of 15 years between their ages. Calculate the ratio of Novita's age to Suzuka's a...
The average age of a group of 20 persons is found to be 27 years. Later it is found that age of two of the persons is calculated as 25 and 30 instead of...
The total age of A, B and C eight years hence will be 98 years. Find the age of C three years hence, if the present age of A and B is 30 years and 25 ye...
Present average age of 4 friends: ‘A’, ‘B’, ‘C’ and ‘D’ is 40 years. If their ages are in the arithmetic progression in the same order a...
Shivani is 6 years younger than Deepika and Deepika is 6 years younger than Mohani. After 6 years the ratio of Shivani’s age and Mohani’s age will b...
The present ages of Vikas and Sneha are in the ratio 7:4, respectively. After 6 years from now, the sum of their ages will be 78 years. Find the present...
A school has 8 teachers and 4 administrators. The average age of the teachers is 40 years, and the average age of the administrators is 55 years. After ...
