Aptitude - Decimal Fraction
6.
The correct expression of 6.46 in the fractional form is :
Answer
6.46 = 6 + 46 = 6 + 4699 = 594 + 4699 = 64099
Answer :
Option DExplanation :
6.46 = 6 + 46 = 6 + 4699 = 594 + 4699 = 64099
7.
0.0203 x 2.920.0073 x 14.5 x 0.7 = ?
Answer
0.0203 x 2.920.0073 x 14.5 x 0.7 = 203 x 29273 x 145 x 7 = 45 = 0.8
Answer :
Option AExplanation :
0.0203 x 2.920.0073 x 14.5 x 0.7 = 203 x 29273 x 145 x 7 = 45 = 0.8
8.
Which of the following is equal to 3.14 x 106 ?
Answer
3.14 x 106 = 3.14 x 1000000 = 3140000.
Answer :
Option CExplanation :
3.14 x 106 = 3.14 x 1000000 = 3140000.
9.
How many digits will be there to the right of the decimal point in the product of 95.75 and .02554 ?
Answer
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.
Answer :
Option BExplanation :
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.
10.
3889 + 12.952 − ? = 3854.002
Answer
Let 3889 + 12.952 − x = 3854.002.
Then x = (3889 + 12.952) − 3854.002
= 3901.952 − 3854.002
= 47.95
Answer :
Option DExplanation :
Let 3889 + 12.952 − x = 3854.002.
Then x = (3889 + 12.952) − 3854.002
= 3901.952 − 3854.002
= 47.95
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