Respuesta :
Main answer: 600
Supporting answer: Comparing quantities
- Comparing quantities is the process of finding an unknown quantity which has a relationship with a given condition related to it.
- We will be given one or more quantities with their units and ask to find the value of same quantity for different units (i.e. in higher values or in lower values).
- Standard method of solving is given some numbers of quantity with its unit we find the value of one quantity of that unit then proceed with the asked amount of quantity with the given unit.
- Here, quantity refers to any item, factors, functions etc...
Given, the price of 1 pen or 2 copies is Rs.40. Therefore, we have the price one pen is 40 or 2 copies to be 40.
Thus, price of one pen is Rs.40.
The price of one copy is 40/2 = Rs.20.
Therefore,
Price of 5 pens is = 40*5 = Rs.200
Price of 20 copies is = 20*20 = Rs.400
The total price of 5 pens and 20 copies is = 200+400 = Rs.600.
Therefore, the total price is Rs.600.
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