RCIS General Mathematics

Question 1

What does the MKS (S.I.) System international use as the basic unit of distance?

A. Micron
B. Inch
C. Meter
D. Mole

Answer 1

C. Meter

Question 2

Which prefix listed below is correctly arranged from smallest to largest?

A. Milli, deci, centi, nano
B. Nano, micro, milli, centi
C. Nano, centi, micro, milli, deci
D. Micro, nano, deci, centi, milli

Answer 2

B. Nano, micro, milli, centi

Explanation:

nano = 10 to the negative 9th
micro = 10 to the negative 6th
milli = 10 to the negative 3rd
centi = 10 to the negative 2nd

Question 3

Which prefix below is correctly arranged from largest to smallest?

A. Kilo, mega, giga
B. Mega, giga, kilo
C. Giga, kilo, mega
D. Giga, mega, kilo

Answer 3

D. Giga, mega, Kilo

Explanation:
Giga = 10 to the 9th = 1 billion
Mega = 10 to the 6th = 1 million
Kilo = 10 to the 3rd = 1,000

Question 4

Divide 4.5 by 1.125

A. 1/4
B. 4
C. 8/9
D. 9/8

Answer 4

B. 4

Question 5

Divide 1/5 by 1.50

A. 1.33
B. 033
C. 1/10
D. 2/15

Answer 5

D. 2/15

Explanation:

Dividing 1/5 by 1.5 is dividing 0.2 by 1.5 = 0.133. Since this decimal answer is not available, you could divide some of the given answers out to get their decimal equivalent. Dividing 15 into 2 is 0.133

Question 6

The ratio 1:3 equals

A. 0.1333
B. 0.333
C. 1.333
D. 3.0

Answer 6

B. 0.333

Explanation: A ratio is a fraction, 1:3 = 0.333

Question 7

A CV Tech uses 1/2 his vacation time fishing, 1/5 his vacation time viisting relatives and 1/4 of it camping. What part of his vacation time was left to relax at home?

A. 1/5
B. 1/20
C. 1/3
D. 3/20

Answer 7

B. 1/20

Explanation
FIND THE COMMON DENOMINATOR, then add up vacation used, subtract to find remaining vacation.

1/2 + 1/5 + 1/4 = 10/20 + 4/20 +5/20 = 19/20

1/20 remains

Question 8

A doctors car has a gasoline tank which holds 20 gallons. When the gauge reads 1/4 full, how many gallons are needed to fill the tank?

A. 5
B. 10
C. 12
D. 15

Answer 8

D. 15

Explanation:
1/4 x 20 = 5

20 - 5 = 15

Question 9

Write 4.5% as a fraction.

A. 9/2
B. 9/20
C. 9/200
D. 9/2000

Answer 9

C. 9/200

Explanation:

4.5% = 4.5/100 x 2 = 9/200

Question 10

What is 62.5% of 80?

A. 0.5
B. 5
C. 50
D. 500

Answer 10

C. 50

Explanation:

0.626 x 80 = 50.08

Question 11

80 is 40% of what number?

A. 20
B. 32
C. 200
D. 320

Answer 11

C. 200

Explanation:

80% = 40% x X

80= 0.4x

X = 80/0.4 = 200

Question 12

Divide 1/2 by 50/1.

A. 5
B. 12.5
C. 25
D. 100

Answer 12

C. 25

Explanation:

To divide fractions, invert the second fraction and multiply.

1/2 x 50/1 = 25

Question 13

Solve 1/2 + 3/4 - 5/6

A. 5/12
B. 7/24
C. 1/3
D. 5/6

Answer 13

A. 5/12

Explanation:

6/12 + 9/12 - 10/12 = 5/12

Question 14

In the proportion 5/10 = x/6, solve for X

A. 3
B. 9
C. 12
D. 18

Answer 14

A. 3

Explanation:

10 x X = 30

X = 30/10
X =  3

Question 15

Subtract 3/4 from 9/10

A. 3/20
B. 1.40
C. 3/5
D. 3/40

Answer 15

A. 3/20

Explanation:

18/20 - 15/20 = 3/20

Question 16

The product of (-3)(4)(-1/2)(-1/3)

A. -1
B. -2
C. 2
D. -6

Answer 16

B. -2

Explanation:

(-3)(4)(-1/2)(-1/3)
(-3)(4)(-0.5)(-0.33)
(-3)(4)(0.167)
(-12)(0.167)
-2

Question 17

Multiply 10 to the 2nd x 10 to the 3rd x 10 to the -1st

A. 10
B. 100
C. 1,000
D. 10,000

Answer 17

D. 10,000

Explanation:

10 _ (2+3-1)
10_ (5-1)
10_(4)
10,000

Question 18

Find the value of (5/4)_3

A. 1.25
B. 1.95
C. 2.65
D. 3.35

Answer 18

B. 1.95

Explanation:

5/4 = 1.25

1. 25 x 1.25 x 1.25
2. 5625 x 1.25 = 1.95

Question 19

When using powers of 10, 1.0 x 10_6 =

A. 1000
B. 10,000
C. 100,000
D. 1,000,000

Answer 19

D 1,000,000

Question 20

1.0 x 10_-3

A. 0.01 (centi)
B. 0.001 (milli)
C. 0.0001 (micro)
D. 0.00001 (hecta)

Answer 20

B. 0.001 (milli)

Explanation:

MOVE YOUR DECIMAL POINT 3 TO THE LEFT (negative)

Question 21

Using the powers of 10, 0.000000133

A. 1.33 x 10_ -4
B. 1.33 x 10_ -5
C. 1.33 x 10_ -6
D. 1.33 x 10_ -7

Answer 21

D. 1.33 x 10_ -7

Explanation:

move decimal point 7 places to the right to get 1.33

Question 22

Expressed in exponential scientific notation, 1,540

A. 1.54 x 10_2
B. 1.54 x 10_3
C. 1.54 x 10_4
D. 1.54 x 10_5

Answer 22

B. 1.54 x 10_3

Explanation:

Move your decimal point 3 places to the left to get 1.54

Question 23

Find the answer for: ((3)_3)_3)

A. 9
B. 27
C. 729
D. 19,683

Answer 23

D. 19,683

Explanation:
3_3 = 3 x 3 x 3 = 9 x 3 = 27
27_3 = 27 x 27 x 27 = 729 x 27 = 19,683

Question 24

Express 30,800,000 in the scientific exponential notation system.

A. 3.08 x 10_4
B. 3.08 x 10_5
C. 3.08 x 10_6
D. 3.08 x 10_7

Answer 24

D. 3.08 x 10_7

Question 25

Multiply these terms expressed in exponential notation:

(3.2 x 10_1) x (4.4 x 10_1)

A. 1.408 x 10_1
B. 1.408 x 10_2
C. 1.408 x 10_3
D. 1.408 x 10_4

Answer 25

C. 1.408 x 10_3

Question 26

How long is on Micron?

A. 10 meters
B. 1 Meter
C. 10-3
D. 10-6

Answer 26

D 10_-6

Explanation:

1 micrometer (micron) is 10_-6

Question 27

Convert 20 feet into meters

A. 3.1 M
B. 4.1 M
C. 5.1 M
D. 6.1 M

Answer 27

D. 6.1 M

Explanation:

2.54 cm = 1 in

12in = 1 ft

240 in = 20 ft

240 in = 609.6 cm = 6.1 M

Question 28

Convert 30 kg into lbs:

A. 44 lbs
B. 55lbs
C. 66 lbs
D. 77 lbs

Answer 28

C. 66lbs

1 kg = 2.2 lb

Question 29

One kilogram equals how many pounds?

A. 1 lb
B. 2.2 lb
C. 2.54 lb
D. 3.2 lb

Answer 29

B. 2.2 lb

Question 30

A patients weight drops 2 kg. How much fluid loss would cause this?

A. 1.5 L
B. 2 L
C. 1.5 lb
D. 2 LB

Answer 30

B. 2 L

Explanation:

1L of water weights 1 Kg

Question 31

One cubic centimeter (cc) equals:

A. 0.01 M_2
B. 1.0 ml
C. 10 ml_3
D. 1 deciliter

Answer 31

B. 1.0 ml

Question 32

1000 ml is approximately equal to 
A. 1 gallon
B. 1 pint
C. 1 quart
D. 1 ounce

Answer 32

C. 1 quart

Explanation:

1000 ml = 1 L = 1.056 qt

Question 33

A PR interval measures 4 mm long on an ECG strip which was run a paper speed 25 mm/sec. How long is the PR interval?

A. 160 msec
B. 200 msec
C. 250 msec
D. 400 msec

Answer 33

A. 160 msec

Explanation:

4mm ( 1 sec/ 25 mm)(1000 msec/ 1 sec)
4 (1000/25)
4 (40)
160

Question 34

Convert 100 deg F to Celsius.

A. 51
B. 46
C. 40
D. 38

Answer 34

D. 38

Explanation:

Celsius = (5/9)(F-32)

Question 35

1 microvolt equals

A. 0.000001 v
B. 0001 v
C. 0.001 v
D. 0.01 v

Answer 35

A. 0.000001 v

Explanation:

10_-6 = micro