Raspberries 3034

Find how many raspberries are in the third and tenth baskets, if there are three raspberries in the first and eight raspberries more in each.

Correct answer:

a₃ =  19
a₁₀ =  75

Step-by-step explanation:

$$\begin{gathered} a_1=3 \\ d=8 \\ {a}_3=a_3=a_1+2\cdot d=3+2\cdot 8=19 \end{gathered}$$

$a_{10}=a_{10}=a_1+9\cdot d=3+9\cdot 8=75$

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