Civil Service Arithmetic Reasoning Practice Test Results

Question 1
31% answer correctly

15 liters of water are poured into an aquarium that`s 70cm long, 30cm wide, and 40cm high. How many cm will the water level in the aquarium rise due to this added water?

(1 liter = 1,000cm3)

12.50
7.14
0.71
5.36
Question 2
20% answer correctly
If all of a roofing company`s 6 workers are required to staff 2 roofing crews, how many workers need to be added during the busy season so they can send 4 complete crews out on jobs?
6
12
6
10
Question 3
87% answer correctly
If gas is $2.55 per gallon, how much will 15 gallons cost?
$40.80
$53.25
$382.50
$38.25