Decimal fractions

[poornima lagadapati]

What decimal of an hour is a second ?

A. .0025
B. .0256
C. .00027
D. .000126

If 2994 ÷ 14.5 = 172, then 29.94 ÷ 1.45 = ?

A. 0.172
B. 1.72
C. 17.2
D. 172

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

 

[poornima lagadapati]

3889 + 12.952 - ? = 3854.002

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

0.04 x 0.0162 is equal to:

A. 6.48 x 10^-3
B. 6.48 x 10^-4
C. 6.48 x 10^-5
D. 6.48 x 10^-6


The price of commodity X increases by 40 paise every year, while the price of commodity Y increases by 15 paise every year. If in 2001, the price of commodity X was Rs. 4.20 and that of Y was Rs. 6.30, in which year commodity X will cost 40 paise more than the commodity Y ?

A. 2010
B. 2011
C. 2012
D. 2013

 

[poornima lagadapati]

617 + 6.017 + 0.617 + 6.0017 = ?

A. 6.2963
B. 62.965
C. 629.6357
D. None of these

0.002 x 0.5 = ?

A. 0.0001
B. 0.001
C. 0.01
D. 0.1

34.95 + 240.016 + 23.98 = ?

A. 298.0946
B. 298.111
C. 298.946
D. 299.09

 

[poornima lagadapati]

Which of the following is equal to 3.14 x 10^6 ?

A. 314
B. 3140
C. 3140000
D. None of these

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

4.036 divided by 0.04 gives :

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

 

[poornima lagadapati]

What decimal of an hour is a second ?

A. .0025
B. .0256
C. .00027
D. .000126

If 2994 ÷ 14.5 = 172, then 29.94 ÷ 1.45 = ?

A. 0.172
B. 1.72
C. 17.2
D. 172

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

1. C, 2. C

 

[poornima lagadapati]

3889 + 12.952 - ? = 3854.002

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

0.04 x 0.0162 is equal to:

A. 6.48 x 10^-3
B. 6.48 x 10^-4
C. 6.48 x 10^-5
D. 6.48 x 10^-6


The price of commodity X increases by 40 paise every year, while the price of commodity Y increases by 15 paise every year. If in 2001, the price of commodity X was Rs. 4.20 and that of Y was Rs. 6.30, in which year commodity X will cost 40 paise more than the commodity Y ?

A. 2010
B. 2011
C. 2012
D. 2013

1. D, 2. B

 

[poornima lagadapati]

617 + 6.017 + 0.617 + 6.0017 = ?

A. 6.2963
B. 62.965
C. 629.6357
D. None of these

0.002 x 0.5 = ?

A. 0.0001
B. 0.001
C. 0.01
D. 0.1

34.95 + 240.016 + 23.98 = ?

A. 298.0946
B. 298.111
C. 298.946
D. 299.09

1. C, 2. B

 

[poornima lagadapati]

Which of the following is equal to 3.14 x 10^6 ?

A. 314
B. 3140
C. 3140000
D. None of these

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

4.036 divided by 0.04 gives :

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

1.c, 2.b

 

[poornima lagadapati]

The least among the following is:

A.0.2
B.1 ÷ 0.2
C.0.2
D.(0.2)^2

 

[poornima lagadapati]

The least among the following is:

A.0.2
B.1 ÷ 0.2
C.0.2
D.(0.2)^2

Option d