A survey was conducted among a sample of 10,000 families on the use of mobile phones connections.It was found that 40% families use 'BSNL',20% families use 'Vodafone',10% families use 'Idea',5% families use 'BSNL' and 'Vodafone',3% families use 'Vodafone and Idea',4% families use 'BSNL and Idea' and 2% families use all the three connections.(iii)Find the number of families that use none of the mobile phone connections.

A survey was conducted among a sample of 10,000 families on the use of mobile phones connections.It was found that 40% families use 'BSNL',20% families use 'Vodafone',10% families use 'Idea',5% families use 'BSNL' and 'Vodafone',3% families use 'Vodafone and Idea',4% families use 'BSNL and Idea' and 2% families use all the three connections.(ii)Determine the number of families that use 'BSNL' mobile phone connection only.

A survey was conducted among a sample of 10,000 families on the use of mobile phones connections.It was found that 40% families use 'BSNL',20% families use 'Vodafone',10% families use 'Idea',5% families use 'BSNL' and 'Vodafone',3% families use 'Vodafone and Idea',4% families use 'BSNL and Idea' and 2% families use all the three connections.(i)If A,B and C denote the sets of families using 'BSNL',Vodafone and Idea mobile phones connections respectively.Match the following columns X and Y in the table.

In a certain town 25% families own a cell phone 15% familes own a scooter and 65% familes own neither a cellphone nor a scooter . If 1500 familes own both a cell phone and a scooter then total number of familes in the town is

Given below is the floral diagram of a family you have studied: Identify the family and aestivation of corolla. Describe three other floral characters from the floral diagram using technic terms.

There are three families. Family A consists of 2 men, 3 women and 1 child. Family B has 2 men, 1 woman and 3 children. Family C has 4 men, 2 women and 6 children. Daily income of men and women as Rs. 200 and Rs. 150 respectively and children have no income. Using matrix multiplication calculate daily income of each family.

Which of the following 'suffixes' used for units of classification in plants indicates a taxonomic category of 'family'.

In a certain locality of Delhi,there are 1000 families.A survey indicated that 300 subscribe to 'The Hindustan Times' daily newspaper and 250 subscribe to 'The statesman' daily newspaper.Of these two categories,100 subscribe to both (i)Express the data using Venn diagram.