A wall of 100 meter can be built by 7 large robots or 10 small robots in 10 days. How many days will 14 large robots and 20 small robots take to build a wall of 600 meter?

A wall of 100 meter can be built by 7 large robots or 10 small robots

1.	A wall of 100 meter can be built by 7 large robots or 10 small robots in 10 days. How many days will 14 large robots and 20 small robots take to build a wall of 600 meter?
A.	30
B.	25
C.	20
D.	15
Answer» E.

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A wall of 100 meter can be built by 7 large robots or 10 small robots in 10 days. How many days will 14 large robots and 20 small robots take to build a wall of 600 meter?

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