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    				| 1. | If 9 girls can prepare 135 garlands in 3 hours, how many girls are needed to prepare 270 garlands in 1 hour? | 
| Answer» The given details are, In 3 hours, 9 Girls can prepare = 135 garlands In 1 hour, 9 girls can prepare = 135/3 = 45 garlands In 1 hour, 1 girl can prepare = 45/9 = 5 garlands ∴ In 1 hour, Number of girls required to prepare 270 garlands = 270/5 = 54 girls | |