Aptitude - Decimal Fraction - Discussion
Discussion Forum : Decimal Fraction - General Questions (Q.No. 5)
5.
If 2994 ÷ 14.5 = 172, then 29.94 ÷ 1.45 = ?
Answer: Option
Explanation:
| 29.94 | = | 299.4 |
| 1.45 | 14.5 |
| = |  |
2994 | x | 1 |  |
[ Here, Substitute 172 in the place of 2994/14.5 ] |
| 14.5 | 10 |
| = | 172 |
| 10 |
= 17.2
Discussion:
35 comments Page 2 of 4.
Philbert said:
6 years ago
I am not understanding this, please anyone explain me in detail.
(2)
Parthipan said:
6 years ago
Actually,
299.4/14.5=172 -------> (1)
29.94/1.45=x -------> (2)
Multiply (2) by 10
299.4/14.5=10x -------> (3).
Now divide(1)/(3)
We can get x = 17.2 answer.
299.4/14.5=172 -------> (1)
29.94/1.45=x -------> (2)
Multiply (2) by 10
299.4/14.5=10x -------> (3).
Now divide(1)/(3)
We can get x = 17.2 answer.
(10)
Ajay said:
7 years ago
29.94 means 2994 * 10^-2,
And 1.45 means 145 * 10^-2,
Bt we know 2994/14.5 =172.
Converting to that form; 2994 * 10^-2/14.5 * 10^-1.
Therefore the 10^-1 frm the denominator is cancelled with the one 10^-1 frm 10^-2
So one 10^-1 left in the numerator.
Ie; 2994 * 10^-1/14.5 = 172 * 10^-1 = 17.2.
And 1.45 means 145 * 10^-2,
Bt we know 2994/14.5 =172.
Converting to that form; 2994 * 10^-2/14.5 * 10^-1.
Therefore the 10^-1 frm the denominator is cancelled with the one 10^-1 frm 10^-2
So one 10^-1 left in the numerator.
Ie; 2994 * 10^-1/14.5 = 172 * 10^-1 = 17.2.
Ram said:
7 years ago
@ALL.
Here, Only decimals change 14.5 to 1.45.
& 172.0 to 17.2.
Then
14.5 = 172.0.
And similarly 1.45 = 17.2.
Here, Only decimals change 14.5 to 1.45.
& 172.0 to 17.2.
Then
14.5 = 172.0.
And similarly 1.45 = 17.2.
Disha said:
8 years ago
Can anyone explain me this with the clear explanation?
S.SASIKUMAR said:
8 years ago
2994 ÷ 14.5=206.48 and 29.94 ÷ 1.45 = 20.6 above the four options are not correct.
If the answer is 2994 ÷ 14.5 = 172 without any calculation based on the decimal value the answer is 17.2 is correct otherwise, the proper calculation the answer is not correct.
If the answer is 2994 ÷ 14.5 = 172 without any calculation based on the decimal value the answer is 17.2 is correct otherwise, the proper calculation the answer is not correct.
Chandra rai said:
8 years ago
How to do solve it 2994 ÷ 14.5 = 172.
29.94 ÷ 1.45 = ?.
29.94 ÷ 1.45 = ?.
Shwetha said:
9 years ago
2994 ÷ 14.5 = 172.
I can't understand how come in 172? Please tell me.
I can't understand how come in 172? Please tell me.
(1)
Parul said:
9 years ago
Why are we multiplying it with 10?
JASPAL said:
10 years ago
Friends I'm unable to understand how 2994/14.5 = 172.
My calculator says 2994/14.5 = 206.4827586206897.
My calculator says 2994/14.5 = 206.4827586206897.
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