[15 years] Today, the age of a father is thrice the age of his son. After 5 years the age of father will be 2.5

For Competitive Exams

Today, the age of a father is thrice the age of his son. After 5 years the age of father will be 2.5 times the age of his son. What is the age of son today?

20 years

15 years

1 years

22 years

Explanation:

Let the age of son = S years and the age of father = F years.

According to the question,

=> F = 3 $\times$ S.

=> F = 3S.

After 5 years,

=> (F+5) = 2.5 $\times$ (S+5).

=> 3S + 5 = 2.5S + 12.5 [put F=3S]

=> 0.5S = 7.5

=> S = 15

Hence, the age of son = 15 years.

Additional Questions

In a school the ratio of boys and girls are in the ration 5:6. 25% of boys will get scholar ship and 20% of girls will get scholar ship what % of students wont get scholarship?	Answer
A and B can together finish a work in 30 days. They worked at it for 20 days and then B let. The remaining work was done by A alone in 20 more days. B alone can do the entire work inoption	Answer
A sum of money at simple interest amounts to Rs. 2240 in 2 years and to Rs. 2600 in 5 years. What is the principal amount?	Answer
If a man rows at the rate of 6 kmph in still water and his rate against the current is 4.5 kmph, then the man`s rate along the current is:	Answer
Rs.900 is divided among Maya, Annie, Saiji so that Maya receives half as much as Annie and Annie half as much as Saiji. Then Saiji`s share is:	Answer
A rectangular carpet has an area of 60 sq.m. If its diagonal and longer side together equal 5 times the shorter side, the length of the carpet is:	Answer
Robert Bosch Logical Reasoning Test Analogy: Apostate: Religion ::? ?	Answer
Analogy: Embarrassed: humiliated :: frightened:?	Answer
Syllogism: Statement: No trunks are ivories. No toes are trunks Conclusion: (1) all toes are ivories (2) some trunks are ivories	Answer
Coding-Decoding: If COMPLETED is coded as MOCELPDET, then DIRECTION will be coded as:	Answer

Share with Friends

Robert Bosch Logical Reasoning Test