At noon

At noon today it was 6°C outside, but it has increased 4°C since then.

What is the temperature outside now?

Correct answer:

t₂ =  10 °C

Step-by-step explanation:

$$\begin{gathered} t_1=6\text{ °C } \\ {t}_2=t_1+4=6+4=10\text{°C} \end{gathered}$$

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