If labor hours worked are 18,000 hrs.; machine in operation hours are 15,000 hrs.; overhead cost pertaining to each machine cost center is OMR 14,000. What would be the Machine hour rate?

a. OMR 93.3

b. OMR 128

c. OMR 0.93

d. OMR 1.28

2-

Find the total selling and administration overheads from the following information. Sales 1,000 units; fixed manufacturing overhead OMR 2,200; variable selling overhead per unit OMR 0.500; fixed selling overhead OMR 400.

a. OMR 650

b. OMR 450

c. OMR 1,150

d. OMR 900

3-

The standard production per hour is 250 units; Ammar produces 270 units, Khalifa produces 300 units and Yousuf produces 400 units. If the differentials applicable are 80% of piece rate below the standard and 120% above the standard. Who falls under the differentials of above the standard?

a. All employees

b. Ammar

c. Khalifa

d. Yousuf