Answer:
0.4 of the chocolate bar.
Step-by-step explanation:
The answer is 4/20 are purple out of 20 trays reduced to 1/5
Area formula is = lx b
Whete we lnow area and width so
We can easily find out length
20.5 = 2.5 × l
l = 20.5 / 2.5
Length = 8.2 cm answer
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