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Arithmetic Aptitude :: Decimal Fraction
0.04 x 0.0162 is equal to:
Answer : Option B
Explanation :
4 x 162 = 648. Sum of decimal places = 6.
So, 0.04 x 0.0162 = 0.000648 = 6.48 x 10-4
4.2 ∗ 4.2 − 1.9 ∗ 1.9 2 .3 ∗ 6.1 is equal to:
Answer : Option B
Explanation :
Given Expression =( a 2 − b 2 ) ( a + b ) ( a − b ) =( a 2 − b 2 ) ( a 2 − b 2 ) = 1
If144 0.144 =14.4 X ,then the value of x is
Answer : Option A
Explanation :
144 0.144 =14.4 X
144 ∗ 1000 144 =14.4 X
x = 14.4 1000 =0.0144
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 ?
Answer : Option B
Explanation :
Suppose commodity X will cost 40 paise more than Y after z years.
Then, (4.20 + 0.40z ) - (6.30 + 0.15z ) = 0.40
0.25z = 0.40 + 2.10
z =2.50 0.25 =250 25 =10
X will cost 40 paise more than Y 10 years after 2001 i.e., 2011.
Which of the following are in descending order of their value ?
Answer : Option D
Explanation :
No answer description available for this question
Which of the following fractions is greater than3 4 and less than5 6 ?
Answer : Option C
Explanation :
3 4 =0.75, 5 6 =0.833 ,1 2 =0.5, 2 3 =0.66,4 5 =0.8,9 10 =0.9
Clearly, 0.8 lies between 0.75 and 0.833.
4 5 lies between3 4 and5 6
The rational number for recurring decimal 0.125125.... is:
Answer : Option C
Explanation :
0.125125... = ˉ 0 .125 =125 999
617 + 6.017 + 0.617 + 6.0017 = ?
Answer : Option C
Explanation :
617.00
6.017
0.617
+ 6.0017
--------
629.6357
---------
The value of489.1375 ∗ 0.0483 ∗ 1.956 0.0873 ∗ 92.581 ∗ 99.749 is closest to:
Answer : Option B
Explanation :
489.1375 ∗ 0.0483 ∗ 1.956 0.0873 ∗ 92.581 ∗ 99.749 489 ∗ 0.05 ∗ 2 0.09 ∗ 93 ∗ 100
=489 9 ∗ 93 ∗ 10
=163 2 79 x1 10
=0.58 10
= 0.058 0.06
Answer : Option B
Explanation :
2 x 5 = 10.
Sum of decimal places = 4
0.002 x 0.5 = 0.001
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