Aptitude - Decimal Fraction - Discussion
Discussion Forum : Decimal Fraction - General Questions (Q.No. 9)
9.
| (0.1667)(0.8333)(0.3333) | is approximately equal to: |
| (0.2222)(0.6667)(0.1250) |
Answer: Option
Explanation:
| Given expression |
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| = 2.50 |
Discussion:
43 comments Page 2 of 5.
Selva said:
7 years ago
All are multiplied by 10000 so that they can become whole numbers.
Take the first two digits 16*83*33=43824.
Take denominator first two digits 22*66*12=17424.
So, 43824/17424 = 2.51.
Take the first two digits 16*83*33=43824.
Take denominator first two digits 22*66*12=17424.
So, 43824/17424 = 2.51.
(3)
Varsha said:
7 years ago
Thanks @Sai Manohar.
Leul said:
8 years ago
Any other simple method?
Sai Manohar said:
9 years ago
Cant we solve using round off method like
(2 * 8 * 3)/(2 * 7 * 1) = 3.4.
Am I right?
(2 * 8 * 3)/(2 * 7 * 1) = 3.4.
Am I right?
Abchamp said:
9 years ago
Thank you @Brk.
Ramesh said:
9 years ago
In simple words for recurring decimals keep recurring values behind the decimals and assume it as your starting point.
X=.83333 so let's assume Z= 8.3333 and you know Z=10X ,and now solve Z and you will get Z = 75/9.
And later you can solve for X which will be 10X = 7.5/9 or X = 75/90.
X=.83333 so let's assume Z= 8.3333 and you know Z=10X ,and now solve Z and you will get Z = 75/9.
And later you can solve for X which will be 10X = 7.5/9 or X = 75/90.
Ramesh said:
9 years ago
Here is the thing.
x = .8333 can be converted as 100x = 83.3333 and 10X = 8.3333, and why so because we need to focus on how many decimals are recurring here it's just one(3) and so we need to remove that.
Always put recurring part behind the decimal (here by multiplying with 10) .and this way the result comes out to be 83 - 8/90 = 75/90 = 5/6 and 0.1250 = 125/1000 = 1/8.
x = .8333 can be converted as 100x = 83.3333 and 10X = 8.3333, and why so because we need to focus on how many decimals are recurring here it's just one(3) and so we need to remove that.
Always put recurring part behind the decimal (here by multiplying with 10) .and this way the result comes out to be 83 - 8/90 = 75/90 = 5/6 and 0.1250 = 125/1000 = 1/8.
Rajeshdharamdasani said:
9 years ago
How 0.1250 = 1/8? Please explain me.
Samreen said:
9 years ago
According to vulgar fractions;
If given 0.1666 = (16 - 1)/90 = 15/90 = 1/6.
But here 0.1667 so can we consider it as 0.1666.
If given 0.1666 = (16 - 1)/90 = 15/90 = 1/6.
But here 0.1667 so can we consider it as 0.1666.
(1)
Samreen said:
9 years ago
It's given as 0.1667, not as 0.166666. So how can you take as 0.16 bar.
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