1.
 (0.1667) (0.8333) (0.3333) (0.2222) (0.6667) (0.1250)
is approximately equal to:
• A.
2
• C.
2.43
• B.
2.40
• D.
2.50
• Report
Explanation :

Given expression =
 0.3333 0.2222
x
 (0.1667) (0.8333) (0.6667) (0.1250)
=
 3333 2222
x
 1 x 5 6 6
 2 x 125 3 1000

 3 2
x
 1 6
x
 5 6
x
 3 2
x 8   =
 5 2
= 2.50

Report
 Name Email
2.
The number 518,000,000 when expressed in scientific notation, equals :
• A.
51.8 x 106
• C.
5.18 x 108
• B.
51.8 x 107
• D.
5.18 x 109
• Report
Explanation :
 518,000,000 = 5.18 x 100000000 = 5.18 x 108
Report
 Name Email
3.
Let F = 0.84181. When F is written as a fraction in lowest terms, the denominator exceeds the numerator by:
• A.
13
• C.
29
• B.
14
• D.
87
• Report
Explanation :

0.84181 =
 84181 - 841 99000
=
 83340 99000
=
 463 550

 Required difference = (550 – 463) = 87.

Report
 Name Email
4.
What is the difference between the biggest and the smallest fraction among
 2 3
,
 3 4
,
 4 5
and
 5 6
?
•  A. 1 6
•  C. 1 20
•  B. 1 12
•  D. 1 30
• Report
Explanation :

Converting each of the given fractions into decimal form, we get:

 2 3
= 0.66,
 3 4
= 0.75,
 4 5
= 0.8,
 5 6
= 0.833.

Since 0.833 > 0.8 > 0.75 > 0.66, so
 5 6
>
 4 5
>
 3 4
>
 2 3

Required difference =
 5 6
-
 2 3
=
 1 6

Report
 Name Email
5.
.04 x ? = .000016
• A.
0.0004
• C.
4
• B.
0.04
• D.
None of these