If the sales tax of 5% is added to an item whose selling price is 1500 Rs then find the bill amount including tax.

In a development plan of a city, a contractor has taken a contract to construct certain houses for which he needs building materials like stones, sand etc. There are three firms A, B, C that can supply him these materials. At one time these firms A, B, C supplied him 40, 35 and 25 truck loads of stones and 10, 5 and 8 truck load of sand respectively. If the cost of one truckload of stone and sand are Rs 1200 and 500 respectively, then find the total amount paid by the contractor to each of these firms A, B, C separately.

A man deposited Rs 10000 in a bank at the rate of 5% simple interest annually. Find the amount in 15^(th) year since he deposited the amount and also calculate the total amount after 20 years.

A man deposited Rs 10000 in a bank at the rate of 5% simple interest annually. Find the amount in 15^(th) year since he deposited the amount and also calculate the total amount after 20 years.

The price of a TV is ₹13,000.The sale tax charges on it is at the rate of 12%.Find the amount that Vinod will have to pay if he buys it.

The bookshop of a particular school has 10 dozen chemistry books, 8 dozen physics books, 10 dozen economics books. Their selling prices are Rs. 80, Rs. 60 and Rs. 40 each respectively. Find the total amount the bookshop will receive from selling all the books using matrix algebra.

Raju buys a moped for Rs. 22000 . He pays Rs. 6000 cash and agrees to pay the balance in annual installments of Rs. 1000 plus 10% interest on the unpaid amount. Find the total cost of the moped.

There are 5% defective items in a large bulk of items. What is the probability that a sample of 10 items will include not more than 1 defective item.

A dealer sells an article for Rs. 16 and loses as much per cent as the cost price of the article. Find the cost price of the article.

Arun bought a pair of skates at a sale where the discount gives was 20%.If the amount he pays is ₹1,600,find the marked price.

A shopkeeper buys 80 articles for ₹2,400 and sells them for a profit of 16%.Find the selling price of one article.