Response with detailed steps:
Cara can plant 5 seeds within a timeframe of 2 minutes.
⇒ Thus, Cara will plant 5×5 seeds over a period of 2×5 minutes
⇒ Therefore, in 10 minutes, Cara manages to plant 25 seeds.
Wade can plant three times more seeds in half the duration that Cara does.
⇒ This means Wade plants 3×5 seeds in 2/2 minutes
i.e. Wade plants 15 seeds within one minute.
In 1×10 minutes, Wade would plant 15×10 seeds
i.e. Wade can plant 150 seeds in 10 minutes.
Adding them together: 150+25=175
Thus, together they are able to plant 175 seeds in 10 minutes.