If 20 workers can build a wal 36 m long in 15 days. The wal can be built by 30 workers in : (a) 24 days ( b) 18 days ( c) 15 days ( d ) 10 days
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20 workers can build a wall 36 m long in 15 days
1 worker can build a wall in 15x20x days
The wall can be built by 30 workers in X days
15x20 divided by 30
10 days
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