Problems on ages and number

Q1. When 15 is subtracted from 7 times the number, the result is 10 more than twice of the Number. Find the number.

A)5B)15C)7.5D)4E)None

Q2. Sum of a rational number and its reciprocal is 13/6. Find the number.

A)2B)3/2C)4/2D)5/2E)None

Q3. The sum of the square of three numbers is 138, while the sum of their products taken two at a time is 131.Their sum is

A)15B)20C)25D)35

Q4.A number is doubled and 9 is added. If the resultant is trebled, it becomes 75. What is the number?

A) 8B) 10C) 12D) 4E) None

Q5. Raju age after 15 years will be 5 times his age 5 years back, what is the present age of Raju.

A)15B)14C)10D)8E)None

Q6.The ratio between the present ages of P and Q is 6:7. If Q is 4 years old than P, what will be the ratio of the ages of P and Q after 4 years.

A)7:8B)7:9C)3:8D)5:8E)None

Q7.Ages of two person differ by 16 years. If 6 year ago, the elder one be 3 times as old the younger one, find their present age.

A)12,28B)14,30C)16,32D)18,34E)None

Q8. The sum of the ages of a father and son is 45 years. Five years ago, the product of their ages was four times the fathers age at that time. The present age of father and son

A)34,11B)35,10C)36,9D)40,5E)None

Q9.Ten years ago, P was half of Q in age. If the ratio of their present ages is 3:4, what will be the total of their ages

A)35B)34C)45D)25E)None

Q10.Ratio between Rahul and Deepak is 4:3. After 6 years, Rahul age will be 26 years. What is Deepak present age.

A)14B)15C)20D)22E)None

Q11. Sachin was twice as old as Ajay 10 years back. How old is Ajay today if Sachin will be 40 years old 10 years hence

A) 18B) 25C) 1520E)None

Q14. Average age of A and B is 24 years and the average age of B,C and D is 22 years. The sum of the ages of A,B,C and D is A) 90B) 98C) 120D) Data is inadequate

Q15. A Man is 24 years older than his son. In two years his age will be twice the age of his son. The present age of his son is

A) 20yearsB) 21 years C) 22 years 24 yearsE)None