Multiple choice

Ramesh can do a piece of work in 36 days. If Suresh works twice as fast as Ramesh, how long would they take to finish the work together? रमेश एक कार्य को 36 दिनों में कर सकता है सुरेश, रमेश से दो गुना कार्य कुशल है। दोनों एक साथ कार्य पूरा करने में कितना समय लगाएंगे?

  1. 12 days/दिन

  2. 16 days/दिन

  3. 18 days/18 दिन

  4. 8 days/8 दिन

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A Correct answer
Explanation

Ramesh's 1 day work = 1/36. Suresh is twice as fast, so his 1 day work = 2/36 = 1/18. Combined 1 day work = 1/36 + 1/18 = 1/36 + 2/36 = 3/36 = 1/12. Therefore, they complete the work in 12 days together.