A make a wall in 9 hour. B makes a wall in 10 hour. When doing together 10 more

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โœช Choose the correct option.

A make a wall in 9 hour. B makes a wall in 10 hour. When doing together 10 more bricks are required and together make a wall in 5 hour. How many bricks are there in the wall?

120
145
235
190

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