A dealer purchased 125 colour television sets. If the cost of each set is Rs. 19820, determine the cost of all sets together.

The cost of 20 metres of ribbon is Rs 335. Find the cost of each metre of it.

Melin has 14 a picture cards. if each picture card costs Rs. 3a b , determine the cost of picture cards possessed by Melin.

52 packets of 12 pencils each, cost Rs 499.20. Find the cost of 65 packets of 10 pencils each.

A man bought two T.V. sets for Rs 42500. He sold one at a loss of 10% and other at a profit of 10%. If the selling price of each T.V. set is same, determine the C.P. of each set.

Describe the following sets in Roster form: The set of all letters in the word ‘Better’.

A group housing society constructed 350 flats. If the cost of construction for each flat is Rs. 993570, what is the total cost of construction of all the flats.

A dealer sells a toy for Rs 24 and gains as much per cent as the cost price of the toy. Find the cost price of the toy.

A shopkeeper purchase a certain number of books for Rs 960. If the cost per books was Rs 8 less, the number of books that could be purchased for Rs 960 would be 4 more. Write an equation, taking the ioriginal cost of each book to be Rs x, and solve it to find ther original cost of the books.

4 tables and 3 chairs, together, cost Rs. 2,250 and 3 tables and 4 chairs cost Rs. 1950. Find the cost of 2 chairs and 1 table.

In a large metropolitan area, the probabilities are 0.87,0.36,0.30 that a family (randomly chosen for a sample survey) owns a colour televise set, a black and white television set, or both kinds of sets. What is the probability that a family owns either any one or both kinds of sets?