Question

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3. What is the next number in the sequence 20, 10, 5, 5/2

Answer 1

Answer:

$\large\boxed{\dfrac{5}{4}}$

Step-by-step explanation:

$a_1=20\\\\a_2=\dfrac{20}{2}=10\\\\a_3=\dfrac{10}{2}=5\\\\a_4=\dfrac{5}{2}\\\\a_5=\dfrac{\frac{5}{2}}{2}=\dfrac{5}{2}\cdot\dfrac{1}{2}=\dfrac{5}{4}$