Aptitude - Decimal Fraction - Discussion

Discussion Forum : Decimal Fraction - General Questions (Q.No. 28)
28.
0.0203 x 2.92 = ?
0.0073 x 14.5 x 0.7
0.8
1.45
2.40
3.25
Answer: Option
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

Discussion:
17 comments Page 1 of 2.

Balu said:   1 decade ago
Please explain me.

Benjamin said:   1 decade ago
I don't understand why approximations have been allowed when the = is straight. or is it that as the total number of decimal places moved top and bottom is 6 and as long as this is equal, this is ok?

Jagdish said:   1 decade ago
If numerator and denominator of a fraction contain the same number of decimal places, then we remove the decimal sign.

Varsha said:   1 decade ago
Can you explain me in short method?

Nitin said:   10 years ago
Please explain, how nominator 4 and denominator 5 come?

Samreen said:   9 years ago
More than to take the approximations it could be a better way to remove the decimal point to get the nearest answer.

And proceed on.

Daya said:   8 years ago
Please, anyone explain the answer.
(1)

Rutuja said:   8 years ago
How come 4/5? please explain.

SAKTHI VIGNESH said:   8 years ago
Convert the decimal points to whole number.
We get (203*292) / (73*145*7). Then (292/73) * (203/7*145). This gives (4) * (29/145) =4* (1/5). Hence we get 4/5.
(2)

Jas said:   7 years ago
I can't understand this, please explain me.
(2)


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