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 manufacturer produces three products x, y, z which he sells in two markets. Annual sales are indicated below: {:("Market",,"Products",),(I,"10,000","2,000","18,000"),(II,"6,000","20,000","8,000"):} (a) If unit sale prices of x, y and z are Rs. 2.50, Rs. 1.50 and Rs. 1.00, respectively, find the total revenue in each market with the help of matrix algebra. (b) If the unit costs of the above three commodities are Rs. 2.00, Rs. 1.00 and 50 paise respectively. Find the gross profit.

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.

A sum of ₹ 20,000 is invested by honey for 2 years at an interest of 8% compunded annually.Find thecoumpound Interest(C.I) and the amount she has to pay at the end of 2 year.

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

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.

Aniruddha bought some books for rupes 60 . He had bought 5 more books for the same amount ,each books would have cost him 1 rupees ,less than . Find the number of books bought by Aniruddha.

Mohan had brought certain number of books for rupes 48, If he had bought 4 more for the same amount , then the cost of each book would have been reduced by 1 rupee . Find the number of books bought by him.

Form the pair of linear equations in the following problems and find their solutions (if they exist) by any algebraic method : A part of monthly hostel charges is fixed and the remaining depends on the number of days one has taken food in the mess. When a student A takes food for 20 days she has to pay Rs. 1,000 as hostel charges whereas a student B, who takes food for 26 days, pays Rs. 1,180 hostel charges. Find the fixed charges and the cost of food per day.

Duirng a sale,a shop offered a discount of 10% on the marked prices of all the items.What would a customer have to pay for a pair of jeans marked at ₹1450 and two shirts marked at ₹850 each?