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

A market research group conducted a survey of 500 consumers and reported that 400 consumers liked product A and 300 consumers liked product B. What is the least number that must have liked both products

In a certain town, 60% of the families own a car, 30% own a house and 20% own both a car and a house. If a family is randomly chosen, what is the probability that this family owns a car or a house but not both?

In a certain town, 60% of the families own a car, 30% own a house and 20% own both a car and a house. If a family is randomly chosen, what is the probability that this family owns a car or a house but not both ?

At the beginning of a year, A and B, investing Rs. 60000 and Rs. 75000 respectively, bought a car. After 4 months their friend C has joined them with capital Rs. 40500, but A and B have withdrawn this capital according to the ratio of their capitals. If at the end of the year the total profit be Rs. 19575 then what will be the profit of each of them?

If the production of cars of an industry rises from 40,000 to 48,400 in 2 years, then what is the rate of increase of production of cars per annum in percentage?

A student noted the number of cars passing thorugh a spot on a road for 100 periods, each of 3 minutes, and summarised this in the table given below. Find the mode of the data.