If selling an article for Rs. 820 causes 10% loss on the selling price, find its cost price

If the profit earned on selling an article for Rs.810 is the same as loss on selling it for Rs.530, then find the cost price of the article.

By selling a speaker for Rs. 768, a man loses 20%. In order to gain 20% how much should he sell the speaker?

A branded AC has a marked price of Rs. 37250. There are 2 options given for the customer.
(i) Selling Price is Rs. 38000 along with attractive gifts worth Rs. 3000 (or)
(ii) Discount of 8% but no free gifts. Which offer is better?

Th e present height of a tree is 847 cm. Find its height two years ago, if it increases at 10 %p.a.

Sultana bought the following things from a general store. Calculate the total bill amount to be paid by her.
(i) Medicines costing Rs.800 with GST at 5%
(ii) Cosmetics costing Rs.650 with GST at 12%
(iii) Cereals costing Rs.900 with GST at 0%
(iv) Sunglass costing Rs.1750 with GST at18%
(v) Air Conditioner costing Rs.28500 with GST at 28%

Vaidegi sold two sarees for Rs.2200 each. On one she gains 10% and on the other she loses 12%. Calculate her gain or loss percentage in the sales of the sarees

Find the difference in the compound interest on Rs. 62500 for 1\(\frac { 1 }{ 2 } \) years at 8% p.a compounded annually and when compounded half-yearly.

A shopkeeper gives two successive discounts on an article whose marked price is Rs.180 and selling price is Rs.108. Find the first discount percentage if the second discount is 25%.

The simple interest on a certain principal for 3 years at 10% p.a is Rs.300. Find the compound interest accrued in 3 years.