Saturday, 11 April 2020

Algebra Grade 7, 8, 9

Algebra_Age Sums

Class 7,8,9 

Duration :30 minutes


Questions :

1. Raju's present age is 6 years. His brother age is 3 times that of Raju's age. Find his brother's age after three years ?

2.  Rajeev age after 15 years will be 5 times his age 5 years back. What is the present age of Rajeev ?

3. The present age of Ram is one sixth of his father's present age. If the difference between their 
    present ages is 35 years, then what is his father's present age ?

4. The ages of Ravi and Rani are in the ratio of 3:5. After 9 years, the ratio of their ages will become
    3:4. Find the present age of Rani ?

5. Ages of two friends are in the ratio 2:1. If the sum of their ages is 51, then their ages are 
    respectively-----

6. At present, the ratio between the ages of Arun and Deepak is 4:3. After 6 years, Arun's age will be 
    26 years. what is the age of Deepak at present ?

7. The difference in age between a girl and her younger sister is 4 years . The younger sister is 4 years. the younger sister in turn is 4 years older than her brother. The sum of the ages of the younger sister and her brother is 16 years. How old are the 3 children ?

8. Meera's mother is four times as old as Meera. After 5 years her mother will be three times as old
    as  she will be then. What are their present ages ?

9. This year, your brother Jack will be 2 years from being twice as old as your sister Jen. The sum of 
    Jack's age and three times Jen's age is 66. How old is Jen?

10. Raju is 4 years older than Rani. Next year Raju will be 2 times as old as Rani. How old is Raju? 

Answers:

1. 21 years

2. 10 years

3. 42 years

4. 15 years

5. 34 years, 17 years

6. 15 years

7. Girl: 14, Younger sister : 10, Brother: 6

8. Meera: 10 years, Mother : 40 years

9. 13.6 years

10. 7 years

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