Decimal Fraction - General Questions

3.87 - 2.59 = ?

A.	1.20
B.	1.2
C.	1.27
D.	1.28

Answer: Option D

Explanation:

3.87 - 2.59 = (3 + 0.87) - (2 + 0.59)

=		3 +	87		-		2 +	59
			99					99

= 1 +		87	-	59
		99		99

= 1 +	28
	99

= 1.28.

4.036 divided by 0.04 gives :

A.	1.009
B.	10.09
C.	100.9
D.	None of these

Answer: Option C

Explanation:

4.036	=	403.6	= 100.9
0.04		4

0.0203 x 2.92	= ?
0.0073 x 14.5 x 0.7

A.	0.8
B.	1.45
C.	2.40
D.	3.25

Answer: Option A

Explanation:

0.0203 x 2.92	=	203 x 292	=	4	= 0.8
0.0073 x 14.5 x 0.7		73 x 145 x 7		5

The fraction 101	27	in decimal for is:
	100000

A.	.01027
B.	10127
C.	101.00027
D.	101.000027

Answer: Option C

Explanation:

101	27	= 101 +	27	= 101 + .00027 = 101.00027
	100000		100000

The correct expression of 6.46 in the fractional form is:

A.	646/99
B.	64640/1000
C.	640/100
D.	640/99

Answer: Option D

Explanation:

6.46 = 6 + 0.46 = 6 +	46	=	594 + 46	=	640	.
	99		99		99

How many digits will be there to the right of the decimal point in the product of 95.75 and .02554 ?

A.	5
B.	6
C.	7
D.	None of these

Answer: Option B

Explanation:

Sum of decimal places = 7.

Since the last digit to the extreme right will be zero (since 5 x 4 = 20), so there will be 6 significant digits to the right of the decimal point.

5 x 1.6 - 2 x 1.4	= ?
1.3

A.	0.4
B.	1.2
C.	1.4
D.	4

Answer: Option D

Explanation:

Given Expression =	8 - 2.8	=	5.2	=	52	= 4.
	1.3		1.3		13

The least among the following is:The least among the following is:

A.	0.2
B.	1 ÷ 0.2
C.	0.2
D.	(0.2)2

Answer: Option D

Explanation:

1 ÷ 0.2 =	1	=	10	= 5;
	0.2		2

0.2 = 0.222...;

(0.2)² = 0.04.

0.04 < 0.2 < 0.22....<5.

Since 0.04 is the least, so (0.2)² is the least.

Decimal Fraction - General Questions

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