Problem $2-20($Algo$)$

An electronics company makes communications devices for military contracts. The company just completed two contracts. The navy contract was for $3,450$ devices and took $25$ workers two weeks $(40$ hours per week$)$ to complete. The army contract was for $6,500$ devices that were produced by $35$ workers in three weeks $(40$ hours per week$).$

a$.$ Calculate the productivity for navy and army contracts in units produced per labor hour.

Note: Round your answers to $2$ decimal places.