An article is sold at a 20% profit on the cost price.
The ratio of the cost price to the selling price:
4:5.
6:5.
5:6.
5:4.
An article is sold at a loss of 10%.
Given that the selling price is _currency_ 7,200.
The cost price in _currency_ is:
_currency_ 8,800.
_currency_ 7,920.
_currency_ 6,480.
_currency_ 8,000.
Given that six textbooks each of the same price cost _currency_ 30,000 at _shop_.
The cost in _currency_ of three textbooks is:
_currency_ 25,000.
_currency_ 5,000.
_currency_ 90,000.
_currency_ 15,000.
