decimal fraction aptitude questions – Free Online Questions and Answers

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

100

Answer: Option C

Explanation:

0.232323… = 0.23 =	23
	99

.009	= .01
?

A.	.0009	B.	.09
C.	.9	D.	9

Answer: Option C

Explanation:

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

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: Option C

Explanation:

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

(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: Option D

Explanation:

Given expression

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

3333

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

10.

3889 + 12.952 – ? = 3854.002

A.	47.095	B.	47.752
C.	47.932	D.	47.95

Answer: Option D

Explanation:

Let 3889 + 12.952 – x = 3854.002.

Then x = (3889 + 12.952) – 3854.002

= 3901.952 – 3854.002

= 47.95.