Out of 500 car owners investigated, 400 owned the car A and 200 owned the car B, 50 owned both the cars A and B. Is this data correct?

Out of 500 car owners investigated, 400 owned car A and 200 owned car B, 50 pwned both A and B cars. Is the data correct ?

In the following questions a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices. (a) Both assertion and reason are correct statements, and reason is the correct explanation of the assertion. (b) Both assertion and reason are correct statements, but reason is not the correct explanation of the assertion. (c) Assertion is correct, but reason is wrong statement. (d) Assertion is wrong but reason is correct statement. (e) Both assertion and reason are wrong statements. Assertion : N_2 is less reactive than P_4 . Reason : Nitrogen has more electron gain enthalpy than phosphorus.

Form the pair of linear equations In the following problems and find their solutions (if they exist) by any algebraic method. :- Places A and B are 100 km apart on a highway. One car starts from A and another from B at the same time. If the cars travel in the same direction at different speeds they meet in 5 hours. If they travel towards each other, they meet in 1 hour. What are the speeds of the two cars ?

A and B are two points of 150 km apart on a highway. A car starts from A and another from B at the same time. If they move in the same direction, they meet in 15 hours, but if they move in opposite direction, they meet in one hour. Find their speeds.

A car is parked among N cars standing in a row, but at either end. On his return, the owner finds that exactly r of the N places are still occupied. The probability that both the places neighboring his car are empty is

The car that I own can go 150 km with 25 litres of petrol. How far can it go with 30 litres of petrol?