Math, asked by bajikhanpatan3, 1 month ago

A can finish a piece of work in 42 days. b is 40% more efficient than
a. b started working alone and after few days a replaced him. if a could finish the remaining work in 7 days, for how many days b worked ?

Answers

Answered by ved4129

Answer:

Step-by-step explanation:

please mark it brainliesst

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