Two cities A and B are 360 km apart. A car goes from A to B with a speed of 40 km/hr and returns to A with a speed of 60 km/hr. What is the average speed of the car?

The monthly incomes of Peter and Paul are in the ratio of 4 : 3. Their expenses are in the ratio of 3 : 2. If each saves Rs. 6,000 at the end of the month, their monthly incomes respectively are (in Rs.)

There are 5 tasks and 5 persons. Task-l cannot be assigned to either person-l or person-2. Task-2 must be assigned to either person-3 or person-4. Every person is to be assigned one task. In how many ways can the assignment be done?

 All good athletes want to win and all athletes who want to win eat a well-balanced diet;  therefore all athletes who do not cat a well-balanced diet are bad athletes. 
The best conclusion from this statement is that

Geeta: Naresh has become a better boxer since he started meditation. Radha: Impossible, A boxer's most important asset is his aggressiveness. Radha's statement reflect her belief that

Consider the following statements :

1. A man had a wife, two sons and daughters in his family 
2. The daughters were invited to a feast and the male members of the family went out to take part in a pienic 
3.The man's father did not return from his work. 

Which of the following statement is true?