Answer:
To find out how many erasers can be purchased for 12 es, we need to divide the total cost of the erasers by the cost of one eraser.
Given that the cost of 140 erasers is 280 es, we can find the cost of one eraser by dividing the total cost by the number of erasers:
Cost of one eraser = Total cost / Number of erasers
Cost of one eraser = 280 es / 140 erasers
Cost of one eraser = 2 es
Now, we can calculate the number of erasers that can be purchased for 12 es by dividing the total amount of money by the cost of one eraser:
Number of erasers = Total amount of money / Cost of one eraser
Number of erasers = 12 es / 2 es
Number of erasers = 6
Therefore, you can purchase 6 erasers for 12 es.
Explanation: