Willow Company uses a standard costing system. The following information pertains to direct labour costs for the month of March:

Standard direct labour rate per hour $15. 00 Actual direct labour rate per hour $13. 50 Labour rate variance $18,000 favourable Actual output 1,000 units Standard hours allowed for actual production 10,000 hours

Refer to Willow Company. How many actual labour hours were worked during March?