11. In a stationary shop, the ratio of sales of pens and pencils is same as the ratio of sales of scales and erasers. When the number of pens, pencils and scales sold in a day is 20,15, 8, 6 respectively. Then, find the number of erasers sold.
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Answer:
8:6= 4:3
Step-by-step explanation:
there are 3 erasers
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