Decimal Fraction

3889 + 12.952 - ? = 3854.002

A:

47.095

B:

47.752

C:

47.932

D:

47.95

Answer: D

Let 3889 + 12.952 - x = 3854.002.

Then x = (3889 + 12.952) - 3854.002

= 3901.952 - 3854.002

= 47.95.

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(0.1667)(0.8333)(0.3333)	is approximately equal to:
(0.2222)(0.6667)(0.1250)

A:

2

B:

2.40

C:

2.43

D:

2.50

Answer: D

Given expression

=	(0.3333)	x	(0.1667)(0.8333)
	(0.2222)		(0.6667)(0.1250)

=

3333

x

1	x	5
6	x	6

2222

2	x	125
3	x	1000

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

=	5
	2

= 2.50

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The expression (11.98 x 11.98 + 11.98 x x + 0.02 x 0.02) will be a perfect square for x equal to:

A:

0.02

B:

0.2

C:

0.04

D:

0.4

Answer: C

Given expression = (11.98)² + (0.02)² + 11.98 x x.

For the given expression to be a perfect square, we must have

11.98 x x = 2 x 11.98 x 0.02 or x = 0.04

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.009	= .01
?

A:

.0009

B:

.09

C:

.9

D:

9

Answer: C

Let	.009	= .01; Then x =	.009	=	.9	= .9
	x		.01		1

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When 0.232323..... is converted into a fraction, then the result is:

A:

1

5

B:

2

9

C:

23

99

D:

23

100

Answer: C

0.232323... = 0.23 =	23
	99

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Questions for: Decimal Fraction