Arithmetic Aptitude - Problems On Age

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43.

The average age of an adult class is 40 years. Twelve new students with an average age of 32 years join the class, thereby decreasing the average of the class by 4 years. The original strength of the class was?                                                                                                                         


A. 10 B. 12
C. 11 D. 15



44.

The present ages of three persons in proportions 4 : 7 : 9. Eight years ago, the sum of their ages was 56. Find their present ages (in years) ?  -                          

A. 8,20,28 B. 16,28,36
C. 20,35,45 D. None of these



45.

The ratio of the ages of Meena and Meera is 4 : 3. The sum of their ages is 2 years. The ratio Of their ages after 8 years will be . ?                                                 [Central Excise ]
A. 4:3 B. 7:4
C. 12:11 D. 6:5




46.

In 10 years, A will be twice as old5as B was 10 years ago. If A is now 9 years older than B, the present age of B is ?                          [L.I.C 1989]
A. 19 Years B. 39 Years
C. 29 Years D. 49 Years



47.

The total age of A and B is 12 years more than the total age of B and C. C is how many years younger than A ?                                 

A. 12 B. 24
C. C is elder than A D. Data inadequate



48.

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. 3:4 B. 3:5
C. 4:3 D. 7:8



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