Mathematics · Time and Work
Hema can do a certain piece of work in 21 days. Hema and Raji can together do the same work in 18 days, and Hema, Raji and Smitha can do the same work together in 14 days. In how many days can Hema and Smitha do the same work, working together?
- 163 4✓
- 263
- 363 5
- 436 5
Correct answer
63 4
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