Math, asked by mani3799, 6 hours ago

'B' is 50% less efficient than 'A' and 'C' is 25% more efficient than 'B'. 'B' alone can complete the work in 60 days. If 'A', 'B', 'C' together started the work, 'A' left 1 day before and 'B' left 6 days before completion of work, then find number of days for which 'A' worked?

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Answered by nupurdhal0

Answer:

When an electric current is passed through a cut potato for a considerable time, greenish blue spot is formed around positive electrode. The chemical effect of the electric current is involved in this process.

Question 13.

Why is chromium used for electroplating? Why the objects have chromium plating are not made of chromium itself?

Answer:

Chromium has a shiny look. It does not get corroded and it resists scratches. Chromium is however expensive and it may not be economical to make the whole object out of it. So the object is made from a cheaper metal and only a coating of chromium is done over it.

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'B' is 50% less efficient than 'A' and 'C' is 25% more efficient than 'B'. 'B' alone can complete the work in 60 days. If 'A', 'B', 'C' together started the work, 'A' left 1 day before and 'B' left 6 days before completion of work, then find number of days for which 'A' worked?​

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'B' is 50% less efficient than 'A' and 'C' is 25% more efficient than 'B'. 'B' alone can complete the work in 60 days. If 'A', 'B', 'C' together started the work, 'A' left 1 day before and 'B' left 6 days before completion of work, then find number of days for which 'A' worked?