The question is from Time and work: Watering the garden. A simple question and with a small subtraction we can arrive at the answer.

Question 19: Ajay and Suraj can water a garden in 45 minutes and 40 minutes respectively. They started working together but after some time Ajay left to watch a cricket match. Suraj hurriedly finished the work in next 23 minutes and joined Ajay. After how many minutes had Ajay left?

- 9 min
- 8 min
- 7 min
- 10 min

9 min

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Suraj took 23 minutes to finish the remaining work = \\frac{23}{40}\\)

Work finished by Ajay and Suraj together = \\frac{17}{40}\\)

Time taken = \\frac{17/40}{(1/45)+(1/40)}\\)= \\frac{17}{8/9 + 1}\\) = \\frac{17}{17/9}\\) = 9 mins

The question is **"how many minutes had Ajay left?"**

Choice A is the correct answer.

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