Answer:
Answer: A. 19.622
Explanation:
20x0.9811=19.622
Content of DEET in 1 ml of insect repellent = 0.9811 ml
To find the DEET content in 20 ml of insect repellent, we have to multiply.
So, content of DEET in 20 ml of insect repellent = 20 × 0.9811 = 19.622 ml.
Hence, the correct answer is (A).
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